Line data Source code
1 : // Copyright 2015 the V8 project authors. All rights reserved.
2 : // Use of this source code is governed by a BSD-style license that can be
3 : // found in the LICENSE file.
4 :
5 : #include "test/unittests/test-utils.h"
6 :
7 : #include "src/handles.h"
8 : #include "src/objects-inl.h"
9 : #include "src/wasm/module-decoder.h"
10 : #include "src/wasm/wasm-features.h"
11 : #include "src/wasm/wasm-limits.h"
12 : #include "src/wasm/wasm-opcodes.h"
13 : #include "test/common/wasm/flag-utils.h"
14 : #include "test/common/wasm/wasm-macro-gen.h"
15 : #include "testing/gmock-support.h"
16 :
17 : using testing::HasSubstr;
18 :
19 : namespace v8 {
20 : namespace internal {
21 : namespace wasm {
22 : namespace module_decoder_unittest {
23 :
24 : #define WASM_INIT_EXPR_I32V_1(val) WASM_I32V_1(val), kExprEnd
25 : #define WASM_INIT_EXPR_I32V_2(val) WASM_I32V_2(val), kExprEnd
26 : #define WASM_INIT_EXPR_I32V_3(val) WASM_I32V_3(val), kExprEnd
27 : #define WASM_INIT_EXPR_I32V_4(val) WASM_I32V_4(val), kExprEnd
28 : #define WASM_INIT_EXPR_I32V_5(val) WASM_I32V_5(val), kExprEnd
29 : #define WASM_INIT_EXPR_F32(val) WASM_F32(val), kExprEnd
30 : #define WASM_INIT_EXPR_I64(val) WASM_I64(val), kExprEnd
31 : #define WASM_INIT_EXPR_F64(val) WASM_F64(val), kExprEnd
32 : #define WASM_INIT_EXPR_ANYREF WASM_REF_NULL, kExprEnd
33 : #define WASM_INIT_EXPR_GLOBAL(index) WASM_GET_GLOBAL(index), kExprEnd
34 :
35 : #define EMPTY_BODY 0
36 : #define NOP_BODY 2, 0, kExprNop
37 :
38 : #define SIG_ENTRY_i_i SIG_ENTRY_x_x(kLocalI32, kLocalI32)
39 :
40 : #define UNKNOWN_SECTION(size) 0, U32V_1(size + 5), ADD_COUNT('l', 'u', 'l', 'z')
41 :
42 : template <typename... Args>
43 : std::integral_constant<size_t, sizeof...(Args)> CountArgsHelper(Args...);
44 : #define COUNT_ARGS(...) (decltype(CountArgsHelper(__VA_ARGS__))::value)
45 :
46 : template <size_t num>
47 : struct CheckLEB1 : std::integral_constant<size_t, num> {
48 : static_assert(num <= I32V_MAX(1), "LEB range check");
49 : };
50 : #define CHECK_LEB1(num) CheckLEB1<num>::value
51 :
52 : #define ADD_COUNT(...) CHECK_LEB1(COUNT_ARGS(__VA_ARGS__)), __VA_ARGS__
53 :
54 : #define SECTION(name, ...) k##name##SectionCode, ADD_COUNT(__VA_ARGS__)
55 :
56 : #define SIGNATURES_SECTION(count, ...) SECTION(Type, U32V_1(count), __VA_ARGS__)
57 : #define FUNCTION_SIGNATURES_SECTION(count, ...) \
58 : SECTION(Function, U32V_1(count), __VA_ARGS__)
59 :
60 : #define FOO_STRING ADD_COUNT('f', 'o', 'o')
61 : #define NO_LOCAL_NAMES 0
62 :
63 : #define EMPTY_SIGNATURES_SECTION SECTION(Type, ENTRY_COUNT(0))
64 : #define EMPTY_FUNCTION_SIGNATURES_SECTION SECTION(Function, ENTRY_COUNT(0))
65 : #define EMPTY_FUNCTION_BODIES_SECTION SECTION(Code, ENTRY_COUNT(0))
66 : #define SECTION_NAMES(...) \
67 : SECTION(Unknown, ADD_COUNT('n', 'a', 'm', 'e'), ##__VA_ARGS__)
68 : #define EMPTY_NAMES_SECTION SECTION_NAMES()
69 : #define SECTION_SRC_MAP(...) \
70 : SECTION(Unknown, \
71 : ADD_COUNT('s', 'o', 'u', 'r', 'c', 'e', 'M', 'a', 'p', 'p', 'i', \
72 : 'n', 'g', 'U', 'R', 'L'), \
73 : ADD_COUNT(__VA_ARGS__))
74 :
75 : #define FAIL_IF_NO_EXPERIMENTAL_EH(data) \
76 : do { \
77 : ModuleResult result = DecodeModule((data), (data) + sizeof((data))); \
78 : EXPECT_FALSE(result.ok()); \
79 : } while (false)
80 :
81 : #define X1(...) __VA_ARGS__
82 : #define X2(...) __VA_ARGS__, __VA_ARGS__
83 : #define X3(...) __VA_ARGS__, __VA_ARGS__, __VA_ARGS__
84 : #define X4(...) __VA_ARGS__, __VA_ARGS__, __VA_ARGS__, __VA_ARGS__
85 :
86 : #define ONE_EMPTY_FUNCTION(sig_index) \
87 : SECTION(Function, ENTRY_COUNT(1), X1(sig_index))
88 :
89 : #define TWO_EMPTY_FUNCTIONS(sig_index) \
90 : SECTION(Function, ENTRY_COUNT(2), X2(sig_index))
91 :
92 : #define THREE_EMPTY_FUNCTIONS(sig_index) \
93 : SECTION(Function, ENTRY_COUNT(3), X3(sig_index))
94 :
95 : #define FOUR_EMPTY_FUNCTIONS(sig_index) \
96 : SECTION(Function, ENTRY_COUNT(4), X4(sig_index))
97 :
98 : #define ONE_EMPTY_BODY SECTION(Code, ENTRY_COUNT(1), X1(EMPTY_BODY))
99 : #define TWO_EMPTY_BODIES SECTION(Code, ENTRY_COUNT(2), X2(EMPTY_BODY))
100 : #define THREE_EMPTY_BODIES SECTION(Code, ENTRY_COUNT(3), X3(EMPTY_BODY))
101 : #define FOUR_EMPTY_BODIES SECTION(Code, ENTRY_COUNT(4), X4(EMPTY_BODY))
102 :
103 : #define SIGNATURES_SECTION_VOID_VOID \
104 : SECTION(Type, ENTRY_COUNT(1), SIG_ENTRY_v_v)
105 :
106 : #define LINEAR_MEMORY_INDEX_0 0
107 :
108 : #define EXCEPTION_ENTRY(sig_index) U32V_1(kExceptionAttribute), sig_index
109 :
110 : #define EXPECT_VERIFIES(data) \
111 : do { \
112 : ModuleResult result = DecodeModule(data, data + sizeof(data)); \
113 : EXPECT_TRUE(result.ok()); \
114 : } while (false)
115 :
116 : #define EXPECT_FAILURE_LEN(data, length) \
117 : do { \
118 : ModuleResult result = DecodeModule(data, data + length); \
119 : EXPECT_FALSE(result.ok()); \
120 : } while (false)
121 :
122 : #define EXPECT_FAILURE(data) EXPECT_FAILURE_LEN(data, sizeof(data))
123 :
124 : #define EXPECT_OFF_END_FAILURE(data, min) \
125 : do { \
126 : STATIC_ASSERT(min < arraysize(data)); \
127 : for (size_t length = min; length < arraysize(data); length++) { \
128 : EXPECT_FAILURE_LEN(data, length); \
129 : } \
130 : } while (false)
131 :
132 : #define EXPECT_OK(result) \
133 : do { \
134 : EXPECT_TRUE(result.ok()); \
135 : if (!result.ok()) return; \
136 : } while (false)
137 :
138 : #define EXPECT_NOT_OK(result, msg) \
139 : do { \
140 : EXPECT_FALSE(result.ok()); \
141 : EXPECT_THAT(result.error().message(), HasSubstr(msg)); \
142 : } while (false)
143 :
144 : static size_t SizeOfVarInt(size_t value) {
145 : size_t size = 0;
146 13 : do {
147 13 : size++;
148 13 : value = value >> 7;
149 : } while (value > 0);
150 : return size;
151 : }
152 :
153 : struct ValueTypePair {
154 : uint8_t code;
155 : ValueType type;
156 : } kValueTypes[] = {
157 : {kLocalI32, kWasmI32}, // --
158 : {kLocalI64, kWasmI64}, // --
159 : {kLocalF32, kWasmF32}, // --
160 : {kLocalF64, kWasmF64}, // --
161 : {kLocalAnyFunc, kWasmAnyFunc}, // --
162 : {kLocalAnyRef, kWasmAnyRef} // --
163 : };
164 :
165 226 : class WasmModuleVerifyTest : public TestWithIsolateAndZone {
166 : public:
167 : WasmFeatures enabled_features_;
168 :
169 235 : ModuleResult DecodeModule(const byte* module_start, const byte* module_end) {
170 : // Add the wasm magic and version number automatically.
171 235 : size_t size = static_cast<size_t>(module_end - module_start);
172 235 : byte header[] = {WASM_MODULE_HEADER};
173 235 : size_t total = sizeof(header) + size;
174 235 : auto temp = new byte[total];
175 : memcpy(temp, header, sizeof(header));
176 235 : memcpy(temp + sizeof(header), module_start, size);
177 : ModuleResult result = DecodeWasmModule(
178 : enabled_features_, temp, temp + total, false, kWasmOrigin,
179 705 : isolate()->counters(), isolate()->allocator());
180 235 : delete[] temp;
181 235 : return result;
182 : }
183 64 : ModuleResult DecodeModuleNoHeader(const byte* module_start,
184 : const byte* module_end) {
185 : return DecodeWasmModule(enabled_features_, module_start, module_end, false,
186 : kWasmOrigin, isolate()->counters(),
187 192 : isolate()->allocator());
188 : }
189 : };
190 :
191 : namespace {
192 : class EnableBoolScope {
193 : public:
194 : bool prev_;
195 : bool* ptr_;
196 : explicit EnableBoolScope(bool* ptr, bool val = true)
197 49 : : prev_(*ptr), ptr_(ptr) {
198 49 : *ptr = val;
199 : }
200 41 : ~EnableBoolScope() { *ptr_ = prev_; }
201 : };
202 :
203 : #define WASM_FEATURE_SCOPE(feat) \
204 : EnableBoolScope feat##_scope(&this->enabled_features_.feat)
205 :
206 : #define WASM_FEATURE_SCOPE_VAL(feat, val) \
207 : EnableBoolScope feat##_scope(&this->enabled_features_.feat, val)
208 : } // namespace
209 :
210 15129 : TEST_F(WasmModuleVerifyTest, WrongMagic) {
211 33 : for (uint32_t x = 1; x; x <<= 1) {
212 32 : const byte data[] = {U32_LE(kWasmMagic ^ x), U32_LE(kWasmVersion)};
213 64 : ModuleResult result = DecodeModuleNoHeader(data, data + sizeof(data));
214 64 : EXPECT_FALSE(result.ok());
215 32 : }
216 1 : }
217 :
218 15129 : TEST_F(WasmModuleVerifyTest, WrongVersion) {
219 33 : for (uint32_t x = 1; x; x <<= 1) {
220 32 : const byte data[] = {U32_LE(kWasmMagic), U32_LE(kWasmVersion ^ x)};
221 64 : ModuleResult result = DecodeModuleNoHeader(data, data + sizeof(data));
222 64 : EXPECT_FALSE(result.ok());
223 32 : }
224 1 : }
225 :
226 15129 : TEST_F(WasmModuleVerifyTest, DecodeEmpty) {
227 2 : ModuleResult result = DecodeModule(nullptr, nullptr);
228 2 : EXPECT_TRUE(result.ok());
229 1 : }
230 :
231 15129 : TEST_F(WasmModuleVerifyTest, OneGlobal) {
232 : static const byte data[] = {
233 : SECTION(Global, // --
234 : ENTRY_COUNT(1), // --
235 : kLocalI32, // local type
236 : 0, // immutable
237 : WASM_INIT_EXPR_I32V_1(13)) // init
238 1 : };
239 :
240 : {
241 : // Should decode to exactly one global.
242 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
243 3 : EXPECT_OK(result);
244 3 : EXPECT_EQ(1u, result.value()->globals.size());
245 3 : EXPECT_EQ(0u, result.value()->functions.size());
246 3 : EXPECT_EQ(0u, result.value()->data_segments.size());
247 :
248 1 : const WasmGlobal* global = &result.value()->globals.back();
249 :
250 2 : EXPECT_EQ(kWasmI32, global->type);
251 2 : EXPECT_EQ(0u, global->offset);
252 2 : EXPECT_FALSE(global->mutability);
253 2 : EXPECT_EQ(WasmInitExpr::kI32Const, global->init.kind);
254 3 : EXPECT_EQ(13, global->init.val.i32_const);
255 : }
256 :
257 36 : EXPECT_OFF_END_FAILURE(data, 1);
258 : }
259 :
260 15129 : TEST_F(WasmModuleVerifyTest, AnyRefGlobal) {
261 1 : WASM_FEATURE_SCOPE(anyref);
262 : static const byte data[] = {
263 : SECTION(Global, // --
264 : ENTRY_COUNT(1), // --
265 : kLocalAnyRef, // local type
266 : 0, // immutable
267 : WASM_INIT_EXPR_ANYREF) // init
268 : };
269 :
270 : {
271 : // Should decode to exactly one global.
272 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
273 3 : EXPECT_OK(result);
274 3 : EXPECT_EQ(1u, result.value()->globals.size());
275 3 : EXPECT_EQ(0u, result.value()->functions.size());
276 3 : EXPECT_EQ(0u, result.value()->data_segments.size());
277 :
278 1 : const WasmGlobal* global = &result.value()->globals.back();
279 :
280 2 : EXPECT_EQ(kWasmAnyRef, global->type);
281 2 : EXPECT_FALSE(global->mutability);
282 3 : EXPECT_EQ(WasmInitExpr::kAnyRefConst, global->init.kind);
283 : }
284 : }
285 :
286 15129 : TEST_F(WasmModuleVerifyTest, AnyRefGlobalWithGlobalInit) {
287 1 : WASM_FEATURE_SCOPE(anyref);
288 : static const byte data[] = {
289 : SECTION(Import, // --
290 : ENTRY_COUNT(1), // number of imports
291 : ADD_COUNT('m'), // module name
292 : ADD_COUNT('f'), // global name
293 : kExternalGlobal, // import kind
294 : kLocalAnyRef, // type
295 : 0), // mutability
296 : SECTION(Global, // --
297 : ENTRY_COUNT(1),
298 : kLocalAnyRef, // local type
299 : 0, // immutable
300 : WASM_INIT_EXPR_GLOBAL(0)),
301 : };
302 :
303 : {
304 : // Should decode to exactly one global.
305 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
306 2 : EXPECT_OK(result);
307 3 : EXPECT_EQ(2u, result.value()->globals.size());
308 3 : EXPECT_EQ(0u, result.value()->functions.size());
309 3 : EXPECT_EQ(0u, result.value()->data_segments.size());
310 :
311 1 : const WasmGlobal* global = &result.value()->globals.back();
312 :
313 2 : EXPECT_EQ(kWasmAnyRef, global->type);
314 2 : EXPECT_FALSE(global->mutability);
315 3 : EXPECT_EQ(WasmInitExpr::kGlobalIndex, global->init.kind);
316 : }
317 : }
318 :
319 15129 : TEST_F(WasmModuleVerifyTest, Global_invalid_type) {
320 : static const byte data[] = {
321 : SECTION(Global, // --
322 : ENTRY_COUNT(1), // --
323 : 64, // invalid memory type
324 : 1, // mutable
325 : WASM_INIT_EXPR_I32V_1(33)), // init
326 1 : };
327 :
328 5 : EXPECT_FAILURE(data);
329 1 : }
330 :
331 15129 : TEST_F(WasmModuleVerifyTest, Global_invalid_type2) {
332 : static const byte data[] = {
333 : SECTION(Global, // --
334 : ENTRY_COUNT(1), // --
335 : kLocalVoid, // invalid memory type
336 : 1, // mutable
337 : WASM_INIT_EXPR_I32V_1(33)), // init
338 1 : };
339 :
340 5 : EXPECT_FAILURE(data);
341 1 : }
342 :
343 15129 : TEST_F(WasmModuleVerifyTest, ZeroGlobals) {
344 : static const byte data[] = {SECTION(Global, ENTRY_COUNT(0))};
345 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
346 2 : EXPECT_OK(result);
347 : }
348 :
349 15129 : TEST_F(WasmModuleVerifyTest, ExportMutableGlobal) {
350 : {
351 : static const byte data[] = {
352 : SECTION(Global, // --
353 : ENTRY_COUNT(1), // --
354 : kLocalI32, // local type
355 : 0, // immutable
356 : WASM_INIT_EXPR_I32V_1(13)), // init
357 : SECTION(Export, // --
358 : ENTRY_COUNT(1), // export count
359 : ADD_COUNT('n', 'a', 'm', 'e'), // name
360 : kExternalGlobal, // global
361 : 0), // global index
362 1 : };
363 4 : EXPECT_VERIFIES(data);
364 : }
365 : {
366 : static const byte data[] = {
367 : SECTION(Global, // --
368 : ENTRY_COUNT(1), // --
369 : kLocalI32, // local type
370 : 1, // mutable
371 : WASM_INIT_EXPR_I32V_1(13)), // init
372 : SECTION(Export, // --
373 : ENTRY_COUNT(1), // export count
374 : ADD_COUNT('n', 'a', 'm', 'e'), // name
375 : kExternalGlobal, // global
376 : 0), // global index
377 1 : };
378 4 : EXPECT_VERIFIES(data);
379 : }
380 1 : }
381 :
382 7 : static void AppendUint32v(std::vector<byte>& buffer, uint32_t val) {
383 : while (true) {
384 13 : uint32_t next = val >> 7;
385 13 : uint32_t out = val & 0x7F;
386 13 : if (next) {
387 12 : buffer.push_back(static_cast<byte>(0x80 | out));
388 : val = next;
389 : } else {
390 14 : buffer.push_back(static_cast<byte>(out));
391 : break;
392 : }
393 6 : }
394 7 : }
395 :
396 15129 : TEST_F(WasmModuleVerifyTest, NGlobals) {
397 : static const byte data[] = {
398 : kLocalF32, // memory type
399 : 0, // immutable
400 : WASM_INIT_EXPR_F32(7.7), // init
401 1 : };
402 :
403 15 : for (uint32_t i = 0; i < kV8MaxWasmGlobals; i = i * 13 + 1) {
404 : std::vector<byte> buffer;
405 14 : size_t size = SizeOfVarInt(i) + i * sizeof(data);
406 7 : const byte globals[] = {kGlobalSectionCode, U32V_5(size)};
407 49 : for (size_t g = 0; g != sizeof(globals); ++g) {
408 42 : buffer.push_back(globals[g]);
409 : }
410 7 : AppendUint32v(buffer, i); // Number of globals.
411 435760 : for (uint32_t j = 0; j < i; j++) {
412 : buffer.insert(buffer.end(), data, data + sizeof(data));
413 : }
414 :
415 28 : ModuleResult result = DecodeModule(&buffer[0], &buffer[0] + buffer.size());
416 15 : EXPECT_OK(result);
417 : }
418 : }
419 :
420 15129 : TEST_F(WasmModuleVerifyTest, GlobalWithInvalidMemoryType) {
421 : static const byte data[] = {SECTION(Global, // --
422 : ENTRY_COUNT(1), // --
423 : 33, // memory type
424 : 0, // exported
425 1 : WASM_INIT_EXPR_I32V_1(1))};
426 :
427 5 : EXPECT_FAILURE(data);
428 1 : }
429 :
430 15129 : TEST_F(WasmModuleVerifyTest, TwoGlobals) {
431 : static const byte data[] = {SECTION(Global, // --
432 : ENTRY_COUNT(2), // --
433 : kLocalF32, // type
434 : 0, // immutable
435 : WASM_INIT_EXPR_F32(22.0), // --
436 : kLocalF64, // type
437 : 1, // mutable
438 1 : WASM_INIT_EXPR_F64(23.0))}; // --
439 :
440 : {
441 : // Should decode to exactly two globals.
442 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
443 3 : EXPECT_OK(result);
444 3 : EXPECT_EQ(2u, result.value()->globals.size());
445 3 : EXPECT_EQ(0u, result.value()->functions.size());
446 3 : EXPECT_EQ(0u, result.value()->data_segments.size());
447 :
448 1 : const WasmGlobal* g0 = &result.value()->globals[0];
449 :
450 2 : EXPECT_EQ(kWasmF32, g0->type);
451 2 : EXPECT_EQ(0u, g0->offset);
452 2 : EXPECT_FALSE(g0->mutability);
453 2 : EXPECT_EQ(WasmInitExpr::kF32Const, g0->init.kind);
454 :
455 1 : const WasmGlobal* g1 = &result.value()->globals[1];
456 :
457 2 : EXPECT_EQ(kWasmF64, g1->type);
458 2 : EXPECT_EQ(8u, g1->offset);
459 1 : EXPECT_TRUE(g1->mutability);
460 3 : EXPECT_EQ(WasmInitExpr::kF64Const, g1->init.kind);
461 : }
462 :
463 111 : EXPECT_OFF_END_FAILURE(data, 1);
464 : }
465 :
466 15129 : TEST_F(WasmModuleVerifyTest, ZeroExceptions) {
467 : static const byte data[] = {SECTION(Exception, ENTRY_COUNT(0))};
468 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
469 :
470 1 : WASM_FEATURE_SCOPE(eh);
471 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
472 3 : EXPECT_OK(result);
473 3 : EXPECT_EQ(0u, result.value()->exceptions.size());
474 : }
475 :
476 15129 : TEST_F(WasmModuleVerifyTest, OneI32Exception) {
477 : static const byte data[] = {
478 : SECTION(Type, ENTRY_COUNT(1), SIG_ENTRY_v_x(kLocalI32)), // sig#0 (i32)
479 : SECTION(Exception, ENTRY_COUNT(1),
480 : EXCEPTION_ENTRY(SIG_INDEX(0)))}; // except[0] (sig#0)
481 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
482 :
483 1 : WASM_FEATURE_SCOPE(eh);
484 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
485 3 : EXPECT_OK(result);
486 3 : EXPECT_EQ(1u, result.value()->exceptions.size());
487 :
488 1 : const WasmException& e0 = result.value()->exceptions.front();
489 3 : EXPECT_EQ(1u, e0.sig->parameter_count());
490 3 : EXPECT_EQ(kWasmI32, e0.sig->GetParam(0));
491 : }
492 :
493 15129 : TEST_F(WasmModuleVerifyTest, TwoExceptions) {
494 : static const byte data[] = {
495 : SECTION(Type, ENTRY_COUNT(2),
496 : SIG_ENTRY_v_x(kLocalI32), // sig#0 (i32)
497 : SIG_ENTRY_v_xx(kLocalF32, kLocalI64)), // sig#1 (f32, i64)
498 : SECTION(Exception, ENTRY_COUNT(2),
499 : EXCEPTION_ENTRY(SIG_INDEX(1)), // except[0] (sig#1)
500 : EXCEPTION_ENTRY(SIG_INDEX(0)))}; // except[1] (sig#0)
501 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
502 :
503 1 : WASM_FEATURE_SCOPE(eh);
504 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
505 3 : EXPECT_OK(result);
506 3 : EXPECT_EQ(2u, result.value()->exceptions.size());
507 1 : const WasmException& e0 = result.value()->exceptions.front();
508 4 : EXPECT_EQ(2u, e0.sig->parameter_count());
509 3 : EXPECT_EQ(kWasmF32, e0.sig->GetParam(0));
510 3 : EXPECT_EQ(kWasmI64, e0.sig->GetParam(1));
511 1 : const WasmException& e1 = result.value()->exceptions.back();
512 3 : EXPECT_EQ(kWasmI32, e1.sig->GetParam(0));
513 : }
514 :
515 15129 : TEST_F(WasmModuleVerifyTest, Exception_invalid_sig_index) {
516 : static const byte data[] = {
517 : SIGNATURES_SECTION_VOID_VOID,
518 : SECTION(Exception, ENTRY_COUNT(1),
519 : EXCEPTION_ENTRY(
520 : SIG_INDEX(23)))}; // except[0] (sig#23 [out-of-bounds])
521 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
522 :
523 : // Should fail decoding exception section.
524 1 : WASM_FEATURE_SCOPE(eh);
525 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
526 6 : EXPECT_NOT_OK(result, "signature index 23 out of bounds");
527 1 : }
528 :
529 15129 : TEST_F(WasmModuleVerifyTest, Exception_invalid_sig_return) {
530 : static const byte data[] = {
531 : SECTION(Type, ENTRY_COUNT(1), SIG_ENTRY_i_i),
532 : SECTION(Exception, ENTRY_COUNT(1),
533 : EXCEPTION_ENTRY(
534 : SIG_INDEX(0)))}; // except[0] (sig#0 [invalid-return-type])
535 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
536 :
537 : // Should fail decoding exception section.
538 1 : WASM_FEATURE_SCOPE(eh);
539 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
540 6 : EXPECT_NOT_OK(result, "exception signature 0 has non-void return");
541 1 : }
542 :
543 15129 : TEST_F(WasmModuleVerifyTest, Exception_invalid_attribute) {
544 : static const byte data[] = {
545 : SECTION(Type, ENTRY_COUNT(1), SIG_ENTRY_i_i),
546 : SECTION(Exception, ENTRY_COUNT(1), 23,
547 : SIG_INDEX(0))}; // except[0] (sig#0) [invalid-attribute]
548 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
549 :
550 : // Should fail decoding exception section.
551 1 : WASM_FEATURE_SCOPE(eh);
552 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
553 6 : EXPECT_NOT_OK(result, "exception attribute 23 not supported");
554 1 : }
555 :
556 15129 : TEST_F(WasmModuleVerifyTest, ExceptionSectionCorrectPlacement) {
557 : static const byte data[] = {SECTION(Import, ENTRY_COUNT(0)),
558 : SECTION(Exception, ENTRY_COUNT(0)),
559 : SECTION(Export, ENTRY_COUNT(0))};
560 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
561 :
562 1 : WASM_FEATURE_SCOPE(eh);
563 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
564 3 : EXPECT_OK(result);
565 : }
566 :
567 15129 : TEST_F(WasmModuleVerifyTest, ExceptionSectionAfterExport) {
568 : static const byte data[] = {SECTION(Export, ENTRY_COUNT(0)),
569 : SECTION(Exception, ENTRY_COUNT(0))};
570 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
571 :
572 1 : WASM_FEATURE_SCOPE(eh);
573 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
574 6 : EXPECT_NOT_OK(result,
575 : "The Exception section must appear before the Export section");
576 1 : }
577 :
578 15129 : TEST_F(WasmModuleVerifyTest, ExceptionSectionBeforeGlobal) {
579 : static const byte data[] = {SECTION(Exception, ENTRY_COUNT(0)),
580 : SECTION(Global, ENTRY_COUNT(0))};
581 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
582 :
583 1 : WASM_FEATURE_SCOPE(eh);
584 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
585 6 : EXPECT_NOT_OK(result, "unexpected section: Global");
586 1 : }
587 :
588 15129 : TEST_F(WasmModuleVerifyTest, ExceptionSectionAfterMemoryBeforeGlobal) {
589 : STATIC_ASSERT(kMemorySectionCode + 1 == kGlobalSectionCode);
590 : static const byte data[] = {SECTION(Memory, ENTRY_COUNT(0)),
591 : SECTION(Exception, ENTRY_COUNT(0)),
592 : SECTION(Global, ENTRY_COUNT(0))};
593 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
594 :
595 1 : WASM_FEATURE_SCOPE(eh);
596 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
597 6 : EXPECT_NOT_OK(result, "unexpected section: Global");
598 1 : }
599 :
600 15129 : TEST_F(WasmModuleVerifyTest, ExceptionImport) {
601 : static const byte data[] = {
602 : SIGNATURES_SECTION_VOID_VOID,
603 : SECTION(Import, // section header
604 : ENTRY_COUNT(1), // number of imports
605 : ADD_COUNT('m'), // module name
606 : ADD_COUNT('e', 'x'), // exception name
607 : kExternalException, // import kind
608 : EXCEPTION_ENTRY(SIG_INDEX(0)))}; // except[0] (sig#0)
609 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
610 :
611 1 : WASM_FEATURE_SCOPE(eh);
612 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
613 3 : EXPECT_OK(result);
614 3 : EXPECT_EQ(1u, result.value()->exceptions.size());
615 3 : EXPECT_EQ(1u, result.value()->import_table.size());
616 : }
617 :
618 15129 : TEST_F(WasmModuleVerifyTest, ExceptionExport) {
619 : static const byte data[] = {
620 : SIGNATURES_SECTION_VOID_VOID,
621 : SECTION(Exception, ENTRY_COUNT(1),
622 : EXCEPTION_ENTRY(SIG_INDEX(0))), // except[0] (sig#0)
623 : SECTION(Export, ENTRY_COUNT(1), // --
624 : NO_NAME, // --
625 : kExternalException, // --
626 : EXCEPTION_INDEX(0))};
627 5 : FAIL_IF_NO_EXPERIMENTAL_EH(data);
628 :
629 1 : WASM_FEATURE_SCOPE(eh);
630 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
631 3 : EXPECT_OK(result);
632 3 : EXPECT_EQ(1u, result.value()->exceptions.size());
633 3 : EXPECT_EQ(1u, result.value()->export_table.size());
634 : }
635 :
636 15129 : TEST_F(WasmModuleVerifyTest, OneSignature) {
637 : {
638 : static const byte data[] = {SIGNATURES_SECTION_VOID_VOID};
639 4 : EXPECT_VERIFIES(data);
640 : }
641 :
642 : {
643 : static const byte data[] = {SECTION(Type, ENTRY_COUNT(1), SIG_ENTRY_i_i)};
644 4 : EXPECT_VERIFIES(data);
645 : }
646 1 : }
647 :
648 15129 : TEST_F(WasmModuleVerifyTest, MultipleSignatures) {
649 : static const byte data[] = {
650 : SECTION(
651 : Type, // --
652 : ENTRY_COUNT(3), // --
653 : SIG_ENTRY_v_v, // void -> void
654 : SIG_ENTRY_x_x(kLocalI32, kLocalF32), // f32 -> i32
655 : SIG_ENTRY_x_xx(kLocalI32, kLocalF64, kLocalF64)), // f64,f64 -> i32
656 : };
657 :
658 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
659 2 : EXPECT_OK(result);
660 3 : EXPECT_EQ(3u, result.value()->signatures.size());
661 2 : if (result.value()->signatures.size() == 3) {
662 2 : EXPECT_EQ(0u, result.value()->signatures[0]->return_count());
663 2 : EXPECT_EQ(1u, result.value()->signatures[1]->return_count());
664 2 : EXPECT_EQ(1u, result.value()->signatures[2]->return_count());
665 :
666 2 : EXPECT_EQ(0u, result.value()->signatures[0]->parameter_count());
667 2 : EXPECT_EQ(1u, result.value()->signatures[1]->parameter_count());
668 2 : EXPECT_EQ(2u, result.value()->signatures[2]->parameter_count());
669 : }
670 :
671 80 : EXPECT_OFF_END_FAILURE(data, 1);
672 : }
673 :
674 15129 : TEST_F(WasmModuleVerifyTest, DataSegmentWithImmutableImportedGlobal) {
675 : // Import 2 globals so that we can initialize data with a global index != 0.
676 : const byte data[] = {
677 : SECTION(Import, // section header
678 : ENTRY_COUNT(2), // number of imports
679 : ADD_COUNT('m'), // module name
680 : ADD_COUNT('f'), // global name
681 : kExternalGlobal, // import kind
682 : kLocalI32, // type
683 : 0, // mutability
684 : ADD_COUNT('n'), // module name
685 : ADD_COUNT('g'), // global name
686 : kExternalGlobal, // import kind
687 : kLocalI32, // type
688 : 0), // mutability
689 : SECTION(Memory, ENTRY_COUNT(1), kHasMaximumFlag, 28, 28),
690 : SECTION(Data, ENTRY_COUNT(1), LINEAR_MEMORY_INDEX_0,
691 : WASM_INIT_EXPR_GLOBAL(1), // dest addr
692 : U32V_1(3), // source size
693 : 'a', 'b', 'c') // data bytes
694 1 : };
695 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
696 2 : EXPECT_OK(result);
697 2 : WasmInitExpr expr = result.value()->data_segments.back().dest_addr;
698 2 : EXPECT_EQ(WasmInitExpr::kGlobalIndex, expr.kind);
699 3 : EXPECT_EQ(1u, expr.val.global_index);
700 : }
701 :
702 15129 : TEST_F(WasmModuleVerifyTest, DataSegmentWithMutableImportedGlobal) {
703 : // Only an immutable imported global can be used as an init_expr.
704 : const byte data[] = {
705 : SECTION(Import, // section header
706 : ENTRY_COUNT(1), // number of imports
707 : ADD_COUNT('m'), // module name
708 : ADD_COUNT('f'), // global name
709 : kExternalGlobal, // import kind
710 : kLocalI32, // type
711 : 1), // mutability
712 : SECTION(Memory, ENTRY_COUNT(1), kHasMaximumFlag, 28, 28),
713 : SECTION(Data, ENTRY_COUNT(1), LINEAR_MEMORY_INDEX_0,
714 : WASM_INIT_EXPR_GLOBAL(0), // dest addr
715 : U32V_1(3), // source size
716 : 'a', 'b', 'c') // data bytes
717 1 : };
718 5 : EXPECT_FAILURE(data);
719 1 : }
720 15129 : TEST_F(WasmModuleVerifyTest, DataSegmentWithImmutableGlobal) {
721 : // Only an immutable imported global can be used as an init_expr.
722 : const byte data[] = {
723 : SECTION(Memory, ENTRY_COUNT(1), kHasMaximumFlag, 28, 28),
724 : SECTION(Global, ENTRY_COUNT(1),
725 : kLocalI32, // local type
726 : 0, // immutable
727 : WASM_INIT_EXPR_I32V_3(0x9BBAA)), // init
728 : SECTION(Data, ENTRY_COUNT(1), LINEAR_MEMORY_INDEX_0,
729 : WASM_INIT_EXPR_GLOBAL(0), // dest addr
730 : U32V_1(3), // source size
731 : 'a', 'b', 'c') // data bytes
732 1 : };
733 5 : EXPECT_FAILURE(data);
734 1 : }
735 :
736 15129 : TEST_F(WasmModuleVerifyTest, OneDataSegment) {
737 1 : const byte kDataSegmentSourceOffset = 24;
738 : const byte data[] = {
739 : SECTION(Memory, ENTRY_COUNT(1), kHasMaximumFlag, 28, 28),
740 : SECTION(Data, ENTRY_COUNT(1), LINEAR_MEMORY_INDEX_0,
741 : WASM_INIT_EXPR_I32V_3(0x9BBAA), // dest addr
742 : U32V_1(3), // source size
743 : 'a', 'b', 'c') // data bytes
744 1 : };
745 :
746 : {
747 4 : EXPECT_VERIFIES(data);
748 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
749 3 : EXPECT_OK(result);
750 3 : EXPECT_EQ(0u, result.value()->globals.size());
751 3 : EXPECT_EQ(0u, result.value()->functions.size());
752 3 : EXPECT_EQ(1u, result.value()->data_segments.size());
753 :
754 1 : const WasmDataSegment* segment = &result.value()->data_segments.back();
755 :
756 2 : EXPECT_EQ(WasmInitExpr::kI32Const, segment->dest_addr.kind);
757 2 : EXPECT_EQ(0x9BBAA, segment->dest_addr.val.i32_const);
758 3 : EXPECT_EQ(kDataSegmentSourceOffset, segment->source.offset());
759 3 : EXPECT_EQ(3u, segment->source.length());
760 : }
761 :
762 26 : EXPECT_OFF_END_FAILURE(data, 14);
763 : }
764 :
765 15129 : TEST_F(WasmModuleVerifyTest, TwoDataSegments) {
766 1 : const byte kDataSegment0SourceOffset = 24;
767 1 : const byte kDataSegment1SourceOffset = kDataSegment0SourceOffset + 11;
768 :
769 : const byte data[] = {
770 : SECTION(Memory, ENTRY_COUNT(1), kHasMaximumFlag, 28, 28),
771 : SECTION(Data,
772 : ENTRY_COUNT(2), // segment count
773 : LINEAR_MEMORY_INDEX_0,
774 : WASM_INIT_EXPR_I32V_3(0x7FFEE), // #0: dest addr
775 : U32V_1(4), // source size
776 : 1, 2, 3, 4, // data bytes
777 : LINEAR_MEMORY_INDEX_0,
778 : WASM_INIT_EXPR_I32V_3(0x6DDCC), // #1: dest addr
779 : U32V_1(10), // source size
780 : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) // data bytes
781 1 : };
782 :
783 : {
784 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
785 3 : EXPECT_OK(result);
786 3 : EXPECT_EQ(0u, result.value()->globals.size());
787 3 : EXPECT_EQ(0u, result.value()->functions.size());
788 3 : EXPECT_EQ(2u, result.value()->data_segments.size());
789 :
790 1 : const WasmDataSegment* s0 = &result.value()->data_segments[0];
791 : const WasmDataSegment* s1 = &result.value()->data_segments[1];
792 :
793 2 : EXPECT_EQ(WasmInitExpr::kI32Const, s0->dest_addr.kind);
794 2 : EXPECT_EQ(0x7FFEE, s0->dest_addr.val.i32_const);
795 3 : EXPECT_EQ(kDataSegment0SourceOffset, s0->source.offset());
796 2 : EXPECT_EQ(4u, s0->source.length());
797 :
798 2 : EXPECT_EQ(WasmInitExpr::kI32Const, s1->dest_addr.kind);
799 2 : EXPECT_EQ(0x6DDCC, s1->dest_addr.val.i32_const);
800 3 : EXPECT_EQ(kDataSegment1SourceOffset, s1->source.offset());
801 3 : EXPECT_EQ(10u, s1->source.length());
802 : }
803 :
804 116 : EXPECT_OFF_END_FAILURE(data, 14);
805 : }
806 :
807 15129 : TEST_F(WasmModuleVerifyTest, DataWithoutMemory) {
808 : const byte data[] = {
809 : SECTION(Data, ENTRY_COUNT(1), LINEAR_MEMORY_INDEX_0,
810 : WASM_INIT_EXPR_I32V_3(0x9BBAA), // dest addr
811 : U32V_1(3), // source size
812 : 'a', 'b', 'c') // data bytes
813 1 : };
814 5 : EXPECT_FAILURE(data);
815 1 : }
816 :
817 15129 : TEST_F(WasmModuleVerifyTest, MaxMaximumMemorySize) {
818 : {
819 : const byte data[] = {
820 1 : SECTION(Memory, ENTRY_COUNT(1), kHasMaximumFlag, 0, U32V_3(65536))};
821 4 : EXPECT_VERIFIES(data);
822 : }
823 : {
824 : const byte data[] = {
825 1 : SECTION(Memory, ENTRY_COUNT(1), kHasMaximumFlag, 0, U32V_3(65537))};
826 5 : EXPECT_FAILURE(data);
827 : }
828 1 : }
829 :
830 15129 : TEST_F(WasmModuleVerifyTest, DataSegment_wrong_init_type) {
831 : const byte data[] = {
832 : SECTION(Memory, ENTRY_COUNT(1), kHasMaximumFlag, 28, 28),
833 : SECTION(Data, ENTRY_COUNT(1), LINEAR_MEMORY_INDEX_0,
834 : WASM_INIT_EXPR_F64(9.9), // dest addr
835 : U32V_1(3), // source size
836 : 'a', 'b', 'c') // data bytes
837 1 : };
838 :
839 5 : EXPECT_FAILURE(data);
840 1 : }
841 :
842 15129 : TEST_F(WasmModuleVerifyTest, DataSegmentEndOverflow) {
843 : const byte data[] = {
844 : SECTION(Memory, // memory section
845 : ENTRY_COUNT(1), kHasMaximumFlag, 28, 28),
846 : SECTION(Data, // data section
847 : ENTRY_COUNT(1), // one entry
848 : LINEAR_MEMORY_INDEX_0, // mem index
849 : WASM_INIT_EXPR_I32V_1(0), // offset
850 : U32V_5(0xFFFFFFFF)) // size
851 1 : };
852 :
853 5 : EXPECT_FAILURE(data);
854 1 : }
855 :
856 15129 : TEST_F(WasmModuleVerifyTest, OneIndirectFunction) {
857 : static const byte data[] = {
858 : // sig#0 ---------------------------------------------------------------
859 : SIGNATURES_SECTION_VOID_VOID,
860 : // funcs ---------------------------------------------------------------
861 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
862 : // table declaration ---------------------------------------------------
863 : SECTION(Table, ENTRY_COUNT(1), kLocalAnyFunc, 0, 1),
864 : // code ----------------------------------------------------------------
865 : ONE_EMPTY_BODY};
866 :
867 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
868 2 : EXPECT_OK(result);
869 1 : if (result.ok()) {
870 3 : EXPECT_EQ(1u, result.value()->signatures.size());
871 3 : EXPECT_EQ(1u, result.value()->functions.size());
872 3 : EXPECT_EQ(1u, result.value()->tables.size());
873 2 : EXPECT_EQ(1u, result.value()->tables[0].initial_size);
874 1 : }
875 : }
876 :
877 15129 : TEST_F(WasmModuleVerifyTest, ElementSectionWithInternalTable) {
878 : static const byte data[] = {
879 : // table ---------------------------------------------------------------
880 : SECTION(Table, ENTRY_COUNT(1), kLocalAnyFunc, 0, 1),
881 : // elements ------------------------------------------------------------
882 : SECTION(Element, ENTRY_COUNT(0))};
883 :
884 4 : EXPECT_VERIFIES(data);
885 1 : }
886 :
887 15129 : TEST_F(WasmModuleVerifyTest, ElementSectionWithImportedTable) {
888 : static const byte data[] = {
889 : // imports -------------------------------------------------------------
890 : SECTION(Import, ENTRY_COUNT(1),
891 : ADD_COUNT('m'), // module name
892 : ADD_COUNT('t'), // table name
893 : kExternalTable, // import kind
894 : kLocalAnyFunc, // elem_type
895 : 0, // no maximum field
896 : 1), // initial size
897 : // elements ------------------------------------------------------------
898 : SECTION(Element, ENTRY_COUNT(0))};
899 :
900 4 : EXPECT_VERIFIES(data);
901 1 : }
902 :
903 15129 : TEST_F(WasmModuleVerifyTest, ElementSectionWithoutTable) {
904 : // Test that an element section without a table causes a validation error.
905 : static const byte data[] = {
906 : // elements ------------------------------------------------------------
907 : SECTION(Element,
908 : ENTRY_COUNT(1), // entry count
909 : 0, // table index
910 : 0, // offset
911 : 0) // number of elements
912 : };
913 :
914 5 : EXPECT_FAILURE(data);
915 1 : }
916 :
917 15129 : TEST_F(WasmModuleVerifyTest, Regression_735887) {
918 : // Test with an invalid function index in the element section.
919 : static const byte data[] = {
920 : // sig#0 ---------------------------------------------------------------
921 : SIGNATURES_SECTION_VOID_VOID,
922 : // funcs ---------------------------------------------------------------
923 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
924 : // table declaration ---------------------------------------------------
925 : SECTION(Table, ENTRY_COUNT(1), kLocalAnyFunc, 0, 1),
926 : // elements ------------------------------------------------------------
927 : SECTION(Element,
928 : ENTRY_COUNT(1), // entry count
929 : TABLE_INDEX0, WASM_INIT_EXPR_I32V_1(0),
930 : 1, // elements count
931 : 0x9A) // invalid I32V as function index
932 1 : };
933 :
934 5 : EXPECT_FAILURE(data);
935 1 : }
936 :
937 15129 : TEST_F(WasmModuleVerifyTest, OneIndirectFunction_one_entry) {
938 : static const byte data[] = {
939 : // sig#0 ---------------------------------------------------------------
940 : SIGNATURES_SECTION_VOID_VOID,
941 : // funcs ---------------------------------------------------------------
942 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
943 : // table declaration ---------------------------------------------------
944 : SECTION(Table, ENTRY_COUNT(1), kLocalAnyFunc, 0, 1),
945 : // elements ------------------------------------------------------------
946 : SECTION(Element,
947 : ENTRY_COUNT(1), // entry count
948 : TABLE_INDEX0, WASM_INIT_EXPR_I32V_1(0),
949 : 1, // elements count
950 : FUNC_INDEX(0)),
951 : // code ----------------------------------------------------------------
952 1 : ONE_EMPTY_BODY};
953 :
954 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
955 2 : EXPECT_OK(result);
956 3 : EXPECT_EQ(1u, result.value()->signatures.size());
957 3 : EXPECT_EQ(1u, result.value()->functions.size());
958 3 : EXPECT_EQ(1u, result.value()->tables.size());
959 3 : EXPECT_EQ(1u, result.value()->tables[0].initial_size);
960 : }
961 :
962 15129 : TEST_F(WasmModuleVerifyTest, MultipleIndirectFunctions) {
963 : static const byte data[] = {
964 : // sig#0 -------------------------------------------------------
965 : SECTION(Type,
966 : ENTRY_COUNT(2), // --
967 : SIG_ENTRY_v_v, // void -> void
968 : SIG_ENTRY_v_x(kLocalI32)), // void -> i32
969 : // funcs ------------------------------------------------------
970 : FOUR_EMPTY_FUNCTIONS(SIG_INDEX(0)),
971 : // table declaration -------------------------------------------
972 : SECTION(Table, ENTRY_COUNT(1), kLocalAnyFunc, 0, 8),
973 : // table elements ----------------------------------------------
974 : SECTION(Element,
975 : ENTRY_COUNT(1), // entry count
976 : TABLE_INDEX0, WASM_INIT_EXPR_I32V_1(0),
977 : ADD_COUNT(FUNC_INDEX(0), FUNC_INDEX(1), FUNC_INDEX(2),
978 : FUNC_INDEX(3), FUNC_INDEX(0), FUNC_INDEX(1),
979 : FUNC_INDEX(2), FUNC_INDEX(3))),
980 1 : FOUR_EMPTY_BODIES};
981 :
982 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
983 2 : EXPECT_OK(result);
984 3 : EXPECT_EQ(2u, result.value()->signatures.size());
985 3 : EXPECT_EQ(4u, result.value()->functions.size());
986 3 : EXPECT_EQ(1u, result.value()->tables.size());
987 3 : EXPECT_EQ(8u, result.value()->tables[0].initial_size);
988 : }
989 :
990 15129 : TEST_F(WasmModuleVerifyTest, ElementSectionMultipleTables) {
991 : // Test that if we have multiple tables, in the element section we can target
992 : // and initialize all tables.
993 1 : WASM_FEATURE_SCOPE(anyref);
994 1 : WASM_FEATURE_SCOPE(bulk_memory);
995 : static const byte data[] = {
996 : // sig#0 ---------------------------------------------------------------
997 : SIGNATURES_SECTION_VOID_VOID,
998 : // funcs ---------------------------------------------------------------
999 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1000 : // table declaration ---------------------------------------------------
1001 : SECTION(Table, ENTRY_COUNT(2), // section header
1002 : kLocalAnyFunc, 0, 5, // table 0
1003 : kLocalAnyFunc, 0, 9), // table 1
1004 : // elements ------------------------------------------------------------
1005 : SECTION(Element,
1006 : ENTRY_COUNT(2), // entry count
1007 : TABLE_INDEX0, // element for table 0
1008 : WASM_INIT_EXPR_I32V_1(0), // index
1009 : 1, // elements count
1010 : FUNC_INDEX(0), // function
1011 : TABLE_INDEX(1), // element for table 1
1012 : WASM_INIT_EXPR_I32V_1(7), // index
1013 : 2, // elements count
1014 : FUNC_INDEX(0), // entry 0
1015 : FUNC_INDEX(0)), // entry 1
1016 : // code ----------------------------------------------------------------
1017 1 : ONE_EMPTY_BODY};
1018 :
1019 4 : EXPECT_VERIFIES(data);
1020 1 : }
1021 :
1022 15129 : TEST_F(WasmModuleVerifyTest, ElementSectionMixedTables) {
1023 : // Test that if we have multiple tables, both imported and module-defined, in
1024 : // the element section we can target and initialize all tables.
1025 1 : WASM_FEATURE_SCOPE(anyref);
1026 1 : WASM_FEATURE_SCOPE(bulk_memory);
1027 : static const byte data[] = {
1028 : // sig#0 ---------------------------------------------------------------
1029 : SIGNATURES_SECTION_VOID_VOID,
1030 : // imports -------------------------------------------------------------
1031 : SECTION(Import, ENTRY_COUNT(2),
1032 : ADD_COUNT('m'), // module name
1033 : ADD_COUNT('t'), // table name
1034 : kExternalTable, // import kind
1035 : kLocalAnyFunc, // elem_type
1036 : 0, // no maximum field
1037 : 5, // initial size
1038 : ADD_COUNT('m'), // module name
1039 : ADD_COUNT('s'), // table name
1040 : kExternalTable, // import kind
1041 : kLocalAnyFunc, // elem_type
1042 : 0, // no maximum field
1043 : 10), // initial size
1044 : // funcs ---------------------------------------------------------------
1045 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1046 : // table declaration ---------------------------------------------------
1047 : SECTION(Table, ENTRY_COUNT(2), // section header
1048 : kLocalAnyFunc, 0, 15, // table 0
1049 : kLocalAnyFunc, 0, 19), // table 1
1050 : // elements ------------------------------------------------------------
1051 : SECTION(Element,
1052 : 4, // entry count
1053 : TABLE_INDEX0, // element for table 0
1054 : WASM_INIT_EXPR_I32V_1(0), // index
1055 : 1, // elements count
1056 : FUNC_INDEX(0), // function
1057 : TABLE_INDEX(1), // element for table 1
1058 : WASM_INIT_EXPR_I32V_1(7), // index
1059 : 2, // elements count
1060 : FUNC_INDEX(0), // entry 0
1061 : FUNC_INDEX(0), // entry 1
1062 : TABLE_INDEX(2), // element for table 2
1063 : WASM_INIT_EXPR_I32V_1(12), // index
1064 : 1, // elements count
1065 : FUNC_INDEX(0), // function
1066 : TABLE_INDEX(3), // element for table 1
1067 : WASM_INIT_EXPR_I32V_1(17), // index
1068 : 2, // elements count
1069 : FUNC_INDEX(0), // entry 0
1070 : FUNC_INDEX(0)), // entry 1
1071 : // code ----------------------------------------------------------------
1072 1 : ONE_EMPTY_BODY};
1073 :
1074 4 : EXPECT_VERIFIES(data);
1075 1 : }
1076 :
1077 15129 : TEST_F(WasmModuleVerifyTest, ElementSectionMultipleTablesArbitraryOrder) {
1078 : // Test that the order in which tables are targeted in the element secion
1079 : // can be arbitrary.
1080 1 : WASM_FEATURE_SCOPE(anyref);
1081 1 : WASM_FEATURE_SCOPE(bulk_memory);
1082 : static const byte data[] = {
1083 : // sig#0 ---------------------------------------------------------------
1084 : SIGNATURES_SECTION_VOID_VOID,
1085 : // funcs ---------------------------------------------------------------
1086 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1087 : // table declaration ---------------------------------------------------
1088 : SECTION(Table, ENTRY_COUNT(2), // section header
1089 : kLocalAnyFunc, 0, 5, // table 0
1090 : kLocalAnyFunc, 0, 9), // table 1
1091 : // elements ------------------------------------------------------------
1092 : SECTION(Element,
1093 : ENTRY_COUNT(3), // entry count
1094 : TABLE_INDEX0, // element for table 1
1095 : WASM_INIT_EXPR_I32V_1(0), // index
1096 : 1, // elements count
1097 : FUNC_INDEX(0), // function
1098 : TABLE_INDEX(1), // element for table 0
1099 : WASM_INIT_EXPR_I32V_1(7), // index
1100 : 2, // elements count
1101 : FUNC_INDEX(0), // entry 0
1102 : FUNC_INDEX(0), // entry 1
1103 : TABLE_INDEX0, // element for table 1
1104 : WASM_INIT_EXPR_I32V_1(3), // index
1105 : 1, // elements count
1106 : FUNC_INDEX(0)), // function
1107 : // code ----------------------------------------------------------------
1108 1 : ONE_EMPTY_BODY};
1109 :
1110 4 : EXPECT_VERIFIES(data);
1111 1 : }
1112 :
1113 15129 : TEST_F(WasmModuleVerifyTest, ElementSectionMixedTablesArbitraryOrder) {
1114 : // Test that the order in which tables are targeted in the element secion can
1115 : // be arbitrary. In this test, tables can be both imported and module-defined.
1116 1 : WASM_FEATURE_SCOPE(anyref);
1117 1 : WASM_FEATURE_SCOPE(bulk_memory);
1118 : static const byte data[] = {
1119 : // sig#0 ---------------------------------------------------------------
1120 : SIGNATURES_SECTION_VOID_VOID,
1121 : // imports -------------------------------------------------------------
1122 : SECTION(Import, ENTRY_COUNT(2),
1123 : ADD_COUNT('m'), // module name
1124 : ADD_COUNT('t'), // table name
1125 : kExternalTable, // import kind
1126 : kLocalAnyFunc, // elem_type
1127 : 0, // no maximum field
1128 : 5, // initial size
1129 : ADD_COUNT('m'), // module name
1130 : ADD_COUNT('s'), // table name
1131 : kExternalTable, // import kind
1132 : kLocalAnyFunc, // elem_type
1133 : 0, // no maximum field
1134 : 10), // initial size
1135 : // funcs ---------------------------------------------------------------
1136 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1137 : // table declaration ---------------------------------------------------
1138 : SECTION(Table, ENTRY_COUNT(2), // section header
1139 : kLocalAnyFunc, 0, 15, // table 0
1140 : kLocalAnyFunc, 0, 19), // table 1
1141 : // elements ------------------------------------------------------------
1142 : SECTION(Element,
1143 : 4, // entry count
1144 : TABLE_INDEX(2), // element for table 0
1145 : WASM_INIT_EXPR_I32V_1(10), // index
1146 : 1, // elements count
1147 : FUNC_INDEX(0), // function
1148 : TABLE_INDEX(3), // element for table 1
1149 : WASM_INIT_EXPR_I32V_1(17), // index
1150 : 2, // elements count
1151 : FUNC_INDEX(0), // entry 0
1152 : FUNC_INDEX(0), // entry 1
1153 : TABLE_INDEX0, // element for table 2
1154 : WASM_INIT_EXPR_I32V_1(2), // index
1155 : 1, // elements count
1156 : FUNC_INDEX(0), // function
1157 : TABLE_INDEX(1), // element for table 1
1158 : WASM_INIT_EXPR_I32V_1(7), // index
1159 : 2, // elements count
1160 : FUNC_INDEX(0), // entry 0
1161 : FUNC_INDEX(0)), // entry 1
1162 : // code ----------------------------------------------------------------
1163 1 : ONE_EMPTY_BODY};
1164 :
1165 4 : EXPECT_VERIFIES(data);
1166 1 : }
1167 :
1168 15129 : TEST_F(WasmModuleVerifyTest, ElementSectionDontInitAnyRefTable) {
1169 : // Test that tables of type 'AnyRef' cannot be initialized by the element
1170 : // section.
1171 1 : WASM_FEATURE_SCOPE(anyref);
1172 1 : WASM_FEATURE_SCOPE(bulk_memory);
1173 : static const byte data[] = {
1174 : // sig#0 ---------------------------------------------------------------
1175 : SIGNATURES_SECTION_VOID_VOID,
1176 : // funcs ---------------------------------------------------------------
1177 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1178 : // table declaration ---------------------------------------------------
1179 : SECTION(Table, ENTRY_COUNT(2), // section header
1180 : kLocalAnyRef, 0, 5, // table 0
1181 : kLocalAnyFunc, 0, 9), // table 1
1182 : // elements ------------------------------------------------------------
1183 : SECTION(Element,
1184 : ENTRY_COUNT(2), // entry count
1185 : TABLE_INDEX0, // element for table 0
1186 : WASM_INIT_EXPR_I32V_1(0), // index
1187 : 1, // elements count
1188 : FUNC_INDEX(0), // function
1189 : TABLE_INDEX(1), // element for table 1
1190 : WASM_INIT_EXPR_I32V_1(7), // index
1191 : 2, // elements count
1192 : FUNC_INDEX(0), // entry 0
1193 : FUNC_INDEX(0)), // entry 1
1194 1 : };
1195 :
1196 5 : EXPECT_FAILURE(data);
1197 1 : }
1198 :
1199 15129 : TEST_F(WasmModuleVerifyTest, ElementSectionDontInitAnyRefImportedTable) {
1200 : // Test that imported tables of type AnyRef cannot be initialized in the
1201 : // elements section.
1202 1 : WASM_FEATURE_SCOPE(anyref);
1203 1 : WASM_FEATURE_SCOPE(bulk_memory);
1204 : static const byte data[] = {
1205 : // sig#0 ---------------------------------------------------------------
1206 : SIGNATURES_SECTION_VOID_VOID,
1207 : // imports -------------------------------------------------------------
1208 : SECTION(Import, ENTRY_COUNT(2),
1209 : ADD_COUNT('m'), // module name
1210 : ADD_COUNT('t'), // table name
1211 : kExternalTable, // import kind
1212 : kLocalAnyFunc, // elem_type
1213 : 0, // no maximum field
1214 : 5, // initial size
1215 : ADD_COUNT('m'), // module name
1216 : ADD_COUNT('s'), // table name
1217 : kExternalTable, // import kind
1218 : kLocalAnyRef, // elem_type
1219 : 0, // no maximum field
1220 : 10), // initial size
1221 : // funcs ---------------------------------------------------------------
1222 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1223 : // table declaration ---------------------------------------------------
1224 : SECTION(Table, ENTRY_COUNT(2), // section header
1225 : kLocalAnyFunc, 0, 15, // table 0
1226 : kLocalAnyFunc, 0, 19), // table 1
1227 : // elements ------------------------------------------------------------
1228 : SECTION(Element,
1229 : ENTRY_COUNT(4), // entry count
1230 : TABLE_INDEX0, // element for table 0
1231 : WASM_INIT_EXPR_I32V_1(10), // index
1232 : 1, // elements count
1233 : FUNC_INDEX(0), // function
1234 : TABLE_INDEX(1), // element for table 1
1235 : WASM_INIT_EXPR_I32V_1(17), // index
1236 : 2, // elements count
1237 : FUNC_INDEX(0), // entry 0
1238 : FUNC_INDEX(0)), // entry 1
1239 1 : };
1240 :
1241 5 : EXPECT_FAILURE(data);
1242 1 : }
1243 :
1244 15129 : TEST_F(WasmModuleVerifyTest, IndirectFunctionNoFunctions) {
1245 : static const byte data[] = {
1246 : // sig#0 -------------------------------------------------------
1247 : SIGNATURES_SECTION_VOID_VOID,
1248 : // indirect table ----------------------------------------------
1249 : SECTION(Table, ENTRY_COUNT(1), 1, 0, 0)};
1250 :
1251 5 : EXPECT_FAILURE(data);
1252 1 : }
1253 :
1254 15129 : TEST_F(WasmModuleVerifyTest, IndirectFunctionInvalidIndex) {
1255 : static const byte data[] = {
1256 : // sig#0 -------------------------------------------------------
1257 : SIGNATURES_SECTION_VOID_VOID,
1258 : // functions ---------------------------------------------------
1259 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1260 : // indirect table ----------------------------------------------
1261 : SECTION(Table, ENTRY_COUNT(1), 1, 1, 0)};
1262 :
1263 5 : EXPECT_FAILURE(data);
1264 1 : }
1265 :
1266 15129 : TEST_F(WasmModuleVerifyTest, MultipleTablesWithoutFlag) {
1267 : static const byte data[] = {
1268 : SECTION(Table, // table section
1269 : ENTRY_COUNT(2), // 2 tables
1270 : kLocalAnyFunc, // table 1: type
1271 : 0, // table 1: no maximum
1272 : 10, // table 1: minimum size
1273 : kLocalAnyFunc, // table 2: type
1274 : 0, // table 2: no maximum
1275 : 10), // table 2: minimum size
1276 : };
1277 5 : EXPECT_FAILURE(data);
1278 1 : }
1279 :
1280 15129 : TEST_F(WasmModuleVerifyTest, MultipleTablesWithFlag) {
1281 1 : WASM_FEATURE_SCOPE(anyref);
1282 : static const byte data[] = {
1283 : SECTION(Table, // table section
1284 : ENTRY_COUNT(2), // 2 tables
1285 : kLocalAnyFunc, // table 1: type
1286 : 0, // table 1: no maximum
1287 : 10, // table 1: minimum size
1288 : kLocalAnyRef, // table 2: type
1289 : 0, // table 2: no maximum
1290 : 11), // table 2: minimum size
1291 : };
1292 :
1293 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
1294 3 : EXPECT_OK(result);
1295 :
1296 3 : EXPECT_EQ(2u, result.value()->tables.size());
1297 :
1298 2 : EXPECT_EQ(10u, result.value()->tables[0].initial_size);
1299 2 : EXPECT_EQ(kWasmAnyFunc, result.value()->tables[0].type);
1300 :
1301 2 : EXPECT_EQ(11u, result.value()->tables[1].initial_size);
1302 2 : EXPECT_EQ(kWasmAnyRef, result.value()->tables[1].type);
1303 : }
1304 :
1305 28 : class WasmSignatureDecodeTest : public TestWithZone {
1306 : public:
1307 : WasmFeatures enabled_features_;
1308 :
1309 : FunctionSig* DecodeSig(const byte* start, const byte* end) {
1310 262 : return DecodeWasmSignatureForTesting(enabled_features_, zone(), start, end);
1311 : }
1312 : };
1313 :
1314 15129 : TEST_F(WasmSignatureDecodeTest, Ok_v_v) {
1315 : static const byte data[] = {SIG_ENTRY_v_v};
1316 1 : v8::internal::AccountingAllocator allocator;
1317 2 : Zone zone(&allocator, ZONE_NAME);
1318 2 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1319 :
1320 2 : EXPECT_TRUE(sig != nullptr);
1321 2 : EXPECT_EQ(0u, sig->parameter_count());
1322 3 : EXPECT_EQ(0u, sig->return_count());
1323 1 : }
1324 :
1325 15129 : TEST_F(WasmSignatureDecodeTest, Ok_t_v) {
1326 1 : WASM_FEATURE_SCOPE(anyref);
1327 7 : for (size_t i = 0; i < arraysize(kValueTypes); i++) {
1328 6 : ValueTypePair ret_type = kValueTypes[i];
1329 6 : const byte data[] = {SIG_ENTRY_x(ret_type.code)};
1330 18 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1331 :
1332 12 : EXPECT_TRUE(sig != nullptr);
1333 12 : EXPECT_EQ(0u, sig->parameter_count());
1334 12 : EXPECT_EQ(1u, sig->return_count());
1335 12 : EXPECT_EQ(ret_type.type, sig->GetReturn());
1336 : }
1337 1 : }
1338 :
1339 15129 : TEST_F(WasmSignatureDecodeTest, Ok_v_t) {
1340 1 : WASM_FEATURE_SCOPE(anyref);
1341 7 : for (size_t i = 0; i < arraysize(kValueTypes); i++) {
1342 6 : ValueTypePair param_type = kValueTypes[i];
1343 6 : const byte data[] = {SIG_ENTRY_v_x(param_type.code)};
1344 18 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1345 :
1346 12 : EXPECT_TRUE(sig != nullptr);
1347 12 : EXPECT_EQ(1u, sig->parameter_count());
1348 12 : EXPECT_EQ(0u, sig->return_count());
1349 12 : EXPECT_EQ(param_type.type, sig->GetParam(0));
1350 : }
1351 1 : }
1352 :
1353 15129 : TEST_F(WasmSignatureDecodeTest, Ok_t_t) {
1354 1 : WASM_FEATURE_SCOPE(anyref);
1355 7 : for (size_t i = 0; i < arraysize(kValueTypes); i++) {
1356 6 : ValueTypePair ret_type = kValueTypes[i];
1357 42 : for (size_t j = 0; j < arraysize(kValueTypes); j++) {
1358 36 : ValueTypePair param_type = kValueTypes[j];
1359 36 : const byte data[] = {SIG_ENTRY_x_x(ret_type.code, param_type.code)};
1360 144 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1361 :
1362 72 : EXPECT_TRUE(sig != nullptr);
1363 72 : EXPECT_EQ(1u, sig->parameter_count());
1364 72 : EXPECT_EQ(1u, sig->return_count());
1365 72 : EXPECT_EQ(param_type.type, sig->GetParam(0));
1366 72 : EXPECT_EQ(ret_type.type, sig->GetReturn());
1367 : }
1368 : }
1369 1 : }
1370 :
1371 15129 : TEST_F(WasmSignatureDecodeTest, Ok_i_tt) {
1372 1 : WASM_FEATURE_SCOPE(anyref);
1373 1 : WASM_FEATURE_SCOPE(mv);
1374 7 : for (size_t i = 0; i < arraysize(kValueTypes); i++) {
1375 6 : ValueTypePair p0_type = kValueTypes[i];
1376 42 : for (size_t j = 0; j < arraysize(kValueTypes); j++) {
1377 36 : ValueTypePair p1_type = kValueTypes[j];
1378 : const byte data[] = {
1379 36 : SIG_ENTRY_x_xx(kLocalI32, p0_type.code, p1_type.code)};
1380 144 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1381 :
1382 72 : EXPECT_TRUE(sig != nullptr);
1383 72 : EXPECT_EQ(2u, sig->parameter_count());
1384 72 : EXPECT_EQ(1u, sig->return_count());
1385 72 : EXPECT_EQ(p0_type.type, sig->GetParam(0));
1386 72 : EXPECT_EQ(p1_type.type, sig->GetParam(1));
1387 : }
1388 : }
1389 1 : }
1390 :
1391 15129 : TEST_F(WasmSignatureDecodeTest, Ok_tt_tt) {
1392 1 : WASM_FEATURE_SCOPE(anyref);
1393 1 : WASM_FEATURE_SCOPE(mv);
1394 7 : for (size_t i = 0; i < arraysize(kValueTypes); i++) {
1395 6 : ValueTypePair p0_type = kValueTypes[i];
1396 42 : for (size_t j = 0; j < arraysize(kValueTypes); j++) {
1397 36 : ValueTypePair p1_type = kValueTypes[j];
1398 : const byte data[] = {SIG_ENTRY_xx_xx(p0_type.code, p1_type.code,
1399 36 : p0_type.code, p1_type.code)};
1400 216 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1401 :
1402 72 : EXPECT_TRUE(sig != nullptr);
1403 72 : EXPECT_EQ(2u, sig->parameter_count());
1404 72 : EXPECT_EQ(2u, sig->return_count());
1405 72 : EXPECT_EQ(p0_type.type, sig->GetParam(0));
1406 72 : EXPECT_EQ(p1_type.type, sig->GetParam(1));
1407 72 : EXPECT_EQ(p0_type.type, sig->GetReturn(0));
1408 72 : EXPECT_EQ(p1_type.type, sig->GetReturn(1));
1409 : }
1410 : }
1411 1 : }
1412 :
1413 15129 : TEST_F(WasmSignatureDecodeTest, TooManyParams) {
1414 : static const byte data[] = {kWasmFunctionTypeCode,
1415 : WASM_I32V_3(kV8MaxWasmFunctionParams + 1),
1416 1 : kLocalI32, 0};
1417 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1418 2 : EXPECT_FALSE(sig != nullptr);
1419 1 : }
1420 :
1421 15129 : TEST_F(WasmSignatureDecodeTest, TooManyReturns) {
1422 3 : for (int i = 0; i < 2; i++) {
1423 2 : bool enable_mv = i != 0;
1424 2 : WASM_FEATURE_SCOPE_VAL(mv, enable_mv);
1425 : const int max_return_count = static_cast<int>(
1426 2 : enable_mv ? kV8MaxWasmFunctionMultiReturns : kV8MaxWasmFunctionReturns);
1427 2 : byte data[] = {kWasmFunctionTypeCode, 0, WASM_I32V_3(max_return_count + 1),
1428 4 : kLocalI32};
1429 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1430 2 : EXPECT_EQ(nullptr, sig);
1431 : }
1432 1 : }
1433 :
1434 15129 : TEST_F(WasmSignatureDecodeTest, Fail_off_end) {
1435 : byte data[256];
1436 6 : for (int p = 0; p <= 255; p = p + 1 + p * 3) {
1437 117 : for (int i = 0; i <= p; i++) data[i] = kLocalI32;
1438 5 : data[0] = static_cast<byte>(p);
1439 :
1440 122 : for (int i = 0; i < p + 1; i++) {
1441 : // Should fall off the end for all signatures.
1442 117 : FunctionSig* sig = DecodeSig(data, data + i);
1443 117 : EXPECT_EQ(nullptr, sig);
1444 : }
1445 : }
1446 1 : }
1447 :
1448 15129 : TEST_F(WasmSignatureDecodeTest, Fail_anyref_without_flag) {
1449 : // Disable AnyRef support and check that decoding fails.
1450 1 : WASM_FEATURE_SCOPE_VAL(anyref, false);
1451 1 : byte ref_types[] = {kLocalAnyFunc, kLocalAnyRef};
1452 3 : for (byte invalid_type : ref_types) {
1453 12 : for (size_t i = 0;; i++) {
1454 14 : byte data[] = {SIG_ENTRY_x_xx(kLocalI32, kLocalI32, kLocalI32)};
1455 14 : if (i >= arraysize(data)) break;
1456 12 : data[i] = invalid_type;
1457 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1458 12 : EXPECT_EQ(nullptr, sig);
1459 12 : }
1460 : }
1461 1 : }
1462 :
1463 15129 : TEST_F(WasmSignatureDecodeTest, Fail_invalid_type) {
1464 : byte kInvalidType = 76;
1465 6 : for (size_t i = 0;; i++) {
1466 7 : byte data[] = {SIG_ENTRY_x_xx(kLocalI32, kLocalI32, kLocalI32)};
1467 7 : if (i >= arraysize(data)) break;
1468 6 : data[i] = kInvalidType;
1469 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1470 6 : EXPECT_EQ(nullptr, sig);
1471 6 : }
1472 1 : }
1473 :
1474 15129 : TEST_F(WasmSignatureDecodeTest, Fail_invalid_ret_type1) {
1475 : static const byte data[] = {SIG_ENTRY_x_x(kLocalVoid, kLocalI32)};
1476 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1477 1 : EXPECT_EQ(nullptr, sig);
1478 1 : }
1479 :
1480 15129 : TEST_F(WasmSignatureDecodeTest, Fail_invalid_param_type1) {
1481 : static const byte data[] = {SIG_ENTRY_x_x(kLocalI32, kLocalVoid)};
1482 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1483 1 : EXPECT_EQ(nullptr, sig);
1484 1 : }
1485 :
1486 15129 : TEST_F(WasmSignatureDecodeTest, Fail_invalid_param_type2) {
1487 : static const byte data[] = {SIG_ENTRY_x_xx(kLocalI32, kLocalI32, kLocalVoid)};
1488 : FunctionSig* sig = DecodeSig(data, data + sizeof(data));
1489 1 : EXPECT_EQ(nullptr, sig);
1490 1 : }
1491 :
1492 2 : class WasmFunctionVerifyTest : public TestWithIsolateAndZone {
1493 : public:
1494 1 : FunctionResult DecodeWasmFunction(const ModuleWireBytes& wire_bytes,
1495 : const WasmModule* module,
1496 : const byte* function_start,
1497 : const byte* function_end) {
1498 1 : WasmFeatures enabled_features;
1499 : return DecodeWasmFunctionForTesting(enabled_features, zone(), wire_bytes,
1500 : module, function_start, function_end,
1501 2 : isolate()->counters());
1502 : }
1503 : };
1504 :
1505 15129 : TEST_F(WasmFunctionVerifyTest, Ok_v_v_empty) {
1506 : static const byte data[] = {
1507 : SIG_ENTRY_v_v, // signature entry
1508 : 4, // locals
1509 : 3,
1510 : kLocalI32, // --
1511 : 4,
1512 : kLocalI64, // --
1513 : 5,
1514 : kLocalF32, // --
1515 : 6,
1516 : kLocalF64, // --
1517 : kExprEnd // body
1518 : };
1519 :
1520 2 : WasmModule module;
1521 : FunctionResult result = DecodeWasmFunction(ModuleWireBytes({}), &module, data,
1522 3 : data + sizeof(data));
1523 2 : EXPECT_OK(result);
1524 :
1525 1 : if (result.value() && result.ok()) {
1526 : WasmFunction* function = result.value().get();
1527 3 : EXPECT_EQ(0u, function->sig->parameter_count());
1528 3 : EXPECT_EQ(0u, function->sig->return_count());
1529 2 : EXPECT_EQ(COUNT_ARGS(SIG_ENTRY_v_v), function->code.offset());
1530 2 : EXPECT_EQ(sizeof(data), function->code.end_offset());
1531 : // TODO(titzer): verify encoding of local declarations
1532 1 : }
1533 : }
1534 :
1535 15129 : TEST_F(WasmModuleVerifyTest, SectionWithoutNameLength) {
1536 1 : const byte data[] = {1};
1537 5 : EXPECT_FAILURE(data);
1538 1 : }
1539 :
1540 15129 : TEST_F(WasmModuleVerifyTest, TheLoneliestOfValidModulesTheTrulyEmptyOne) {
1541 : const byte data[] = {
1542 : 0, // unknown section code.
1543 : 0, // Empty section name.
1544 : // No section name, no content, nothing but sadness.
1545 : 0, // No section content.
1546 1 : };
1547 4 : EXPECT_VERIFIES(data);
1548 1 : }
1549 :
1550 15129 : TEST_F(WasmModuleVerifyTest, OnlyUnknownSectionEmpty) {
1551 : const byte data[] = {
1552 : UNKNOWN_SECTION(0),
1553 1 : };
1554 4 : EXPECT_VERIFIES(data);
1555 1 : }
1556 :
1557 15129 : TEST_F(WasmModuleVerifyTest, OnlyUnknownSectionNonEmpty) {
1558 : const byte data[] = {
1559 : UNKNOWN_SECTION(5),
1560 : 0xFF,
1561 : 0xFF,
1562 : 0xFF,
1563 : 0xFF,
1564 : 0xFF, // section data
1565 1 : };
1566 4 : EXPECT_VERIFIES(data);
1567 1 : }
1568 :
1569 15129 : TEST_F(WasmModuleVerifyTest, SignatureFollowedByEmptyUnknownSection) {
1570 : const byte data[] = {
1571 : // signatures
1572 : SIGNATURES_SECTION_VOID_VOID,
1573 : // -----------------------------------------------------------
1574 1 : UNKNOWN_SECTION(0)};
1575 4 : EXPECT_VERIFIES(data);
1576 1 : }
1577 :
1578 15129 : TEST_F(WasmModuleVerifyTest, SignatureFollowedByUnknownSection) {
1579 : const byte data[] = {
1580 : // signatures
1581 : SIGNATURES_SECTION_VOID_VOID,
1582 : // -----------------------------------------------------------
1583 : UNKNOWN_SECTION(5), 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
1584 1 : };
1585 4 : EXPECT_VERIFIES(data);
1586 1 : }
1587 :
1588 15129 : TEST_F(WasmModuleVerifyTest, UnknownSectionOverflow) {
1589 : static const byte data[] = {
1590 : UNKNOWN_SECTION(9),
1591 : 1,
1592 : 2,
1593 : 3,
1594 : 4,
1595 : 5,
1596 : 6,
1597 : 7,
1598 : 8,
1599 : 9,
1600 : 10, // 10 byte section
1601 : };
1602 5 : EXPECT_FAILURE(data);
1603 1 : }
1604 :
1605 15129 : TEST_F(WasmModuleVerifyTest, UnknownSectionUnderflow) {
1606 : static const byte data[] = {
1607 : UNKNOWN_SECTION(333),
1608 : 1,
1609 : 2,
1610 : 3,
1611 : 4, // 4 byte section
1612 : };
1613 5 : EXPECT_FAILURE(data);
1614 1 : }
1615 :
1616 15129 : TEST_F(WasmModuleVerifyTest, UnknownSectionSkipped) {
1617 : static const byte data[] = {
1618 : UNKNOWN_SECTION(1),
1619 : 0, // one byte section
1620 : SECTION(Global, ENTRY_COUNT(1),
1621 : kLocalI32, // memory type
1622 : 0, // exported
1623 : WASM_INIT_EXPR_I32V_1(33)), // init
1624 1 : };
1625 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
1626 2 : EXPECT_OK(result);
1627 :
1628 3 : EXPECT_EQ(1u, result.value()->globals.size());
1629 3 : EXPECT_EQ(0u, result.value()->functions.size());
1630 3 : EXPECT_EQ(0u, result.value()->data_segments.size());
1631 :
1632 1 : const WasmGlobal* global = &result.value()->globals.back();
1633 :
1634 2 : EXPECT_EQ(kWasmI32, global->type);
1635 3 : EXPECT_EQ(0u, global->offset);
1636 : }
1637 :
1638 15129 : TEST_F(WasmModuleVerifyTest, ImportTable_empty) {
1639 : static const byte data[] = {SECTION(Type, ENTRY_COUNT(0)),
1640 : SECTION(Import, ENTRY_COUNT(0))};
1641 4 : EXPECT_VERIFIES(data);
1642 1 : }
1643 :
1644 15129 : TEST_F(WasmModuleVerifyTest, ImportTable_nosigs1) {
1645 : static const byte data[] = {SECTION(Import, ENTRY_COUNT(0))};
1646 4 : EXPECT_VERIFIES(data);
1647 1 : }
1648 :
1649 15129 : TEST_F(WasmModuleVerifyTest, ImportTable_mutable_global) {
1650 : {
1651 : static const byte data[] = {
1652 : SECTION(Import, // section header
1653 : ENTRY_COUNT(1), // number of imports
1654 : ADD_COUNT('m'), // module name
1655 : ADD_COUNT('f'), // global name
1656 : kExternalGlobal, // import kind
1657 : kLocalI32, // type
1658 : 0), // mutability
1659 : };
1660 4 : EXPECT_VERIFIES(data);
1661 : }
1662 : {
1663 : static const byte data[] = {
1664 : SECTION(Import, // section header
1665 : ENTRY_COUNT(1), // sig table
1666 : ADD_COUNT('m'), // module name
1667 : ADD_COUNT('f'), // global name
1668 : kExternalGlobal, // import kind
1669 : kLocalI32, // type
1670 : 1), // mutability
1671 : };
1672 4 : EXPECT_VERIFIES(data);
1673 : }
1674 1 : }
1675 :
1676 15129 : TEST_F(WasmModuleVerifyTest, ImportTable_mutability_malformed) {
1677 : static const byte data[] = {
1678 : SECTION(Import,
1679 : ENTRY_COUNT(1), // --
1680 : ADD_COUNT('m'), // module name
1681 : ADD_COUNT('g'), // global name
1682 : kExternalGlobal, // import kind
1683 : kLocalI32, // type
1684 : 2), // invalid mutability
1685 : };
1686 5 : EXPECT_FAILURE(data);
1687 1 : }
1688 :
1689 15129 : TEST_F(WasmModuleVerifyTest, ImportTable_nosigs2) {
1690 : static const byte data[] = {
1691 : SECTION(Import, ENTRY_COUNT(1), // sig table
1692 : ADD_COUNT('m'), // module name
1693 : ADD_COUNT('f'), // function name
1694 : kExternalFunction, // import kind
1695 : SIG_INDEX(0)), // sig index
1696 : };
1697 5 : EXPECT_FAILURE(data);
1698 1 : }
1699 :
1700 15129 : TEST_F(WasmModuleVerifyTest, ImportTable_invalid_sig) {
1701 : static const byte data[] = {
1702 : SECTION(Type, ENTRY_COUNT(0)), // --
1703 : SECTION(Import, ENTRY_COUNT(1), // --
1704 : ADD_COUNT('m'), // module name
1705 : ADD_COUNT('f'), // function name
1706 : kExternalFunction, // import kind
1707 : SIG_INDEX(0)), // sig index
1708 : };
1709 5 : EXPECT_FAILURE(data);
1710 1 : }
1711 :
1712 15129 : TEST_F(WasmModuleVerifyTest, ImportTable_one_sig) {
1713 : static const byte data[] = {
1714 : // signatures
1715 : SIGNATURES_SECTION_VOID_VOID,
1716 : SECTION(Import,
1717 : ENTRY_COUNT(1), // --
1718 : ADD_COUNT('m'), // module name
1719 : ADD_COUNT('f'), // function name
1720 : kExternalFunction, // import kind
1721 : SIG_INDEX(0)), // sig index
1722 : };
1723 4 : EXPECT_VERIFIES(data);
1724 1 : }
1725 :
1726 15129 : TEST_F(WasmModuleVerifyTest, ImportTable_invalid_module) {
1727 : static const byte data[] = {
1728 : // signatures
1729 : SIGNATURES_SECTION_VOID_VOID, // --
1730 : SECTION(Import, // --
1731 : ENTRY_COUNT(1), // --
1732 : NO_NAME, // module name
1733 : ADD_COUNT('f'), // function name
1734 : kExternalFunction, // import kind
1735 : SIG_INDEX(0), // sig index
1736 : 0), // auxiliary data
1737 : };
1738 5 : EXPECT_FAILURE(data);
1739 1 : }
1740 :
1741 15129 : TEST_F(WasmModuleVerifyTest, ImportTable_off_end) {
1742 : static const byte data[] = {
1743 : // signatures
1744 : SIGNATURES_SECTION_VOID_VOID,
1745 : SECTION(Import, ENTRY_COUNT(1),
1746 : ADD_COUNT('m'), // module name
1747 : ADD_COUNT('f'), // function name
1748 : kExternalFunction), // import kind
1749 : SIG_INDEX(0), // sig index (outside import section!)
1750 : };
1751 :
1752 13 : EXPECT_OFF_END_FAILURE(data, arraysize(data) - 3);
1753 1 : }
1754 :
1755 15129 : TEST_F(WasmModuleVerifyTest, ExportTable_empty1) {
1756 : static const byte data[] = { // signatures
1757 : SIGNATURES_SECTION_VOID_VOID, // --
1758 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1759 : SECTION(Export, ENTRY_COUNT(0)), // --
1760 : ONE_EMPTY_BODY};
1761 :
1762 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
1763 2 : EXPECT_OK(result);
1764 :
1765 3 : EXPECT_EQ(1u, result.value()->functions.size());
1766 4 : EXPECT_EQ(0u, result.value()->export_table.size());
1767 : }
1768 :
1769 15129 : TEST_F(WasmModuleVerifyTest, ExportTable_empty2) {
1770 : static const byte data[] = {SECTION(Type, ENTRY_COUNT(0)),
1771 : SECTION(Export, ENTRY_COUNT(0))};
1772 4 : EXPECT_VERIFIES(data);
1773 1 : }
1774 :
1775 15129 : TEST_F(WasmModuleVerifyTest, ExportTable_NoFunctions2) {
1776 : static const byte data[] = {SECTION(Export, ENTRY_COUNT(0))};
1777 4 : EXPECT_VERIFIES(data);
1778 1 : }
1779 :
1780 15129 : TEST_F(WasmModuleVerifyTest, ExportTableOne) {
1781 : static const byte data[] = {
1782 : // signatures
1783 : SIGNATURES_SECTION_VOID_VOID, ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1784 : SECTION(Export,
1785 : ENTRY_COUNT(1), // exports
1786 : NO_NAME, // --
1787 : kExternalFunction, // --
1788 : FUNC_INDEX(0)), // --
1789 : ONE_EMPTY_BODY};
1790 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
1791 2 : EXPECT_OK(result);
1792 :
1793 3 : EXPECT_EQ(1u, result.value()->functions.size());
1794 4 : EXPECT_EQ(1u, result.value()->export_table.size());
1795 : }
1796 :
1797 15129 : TEST_F(WasmModuleVerifyTest, ExportNameWithInvalidStringLength) {
1798 : static const byte data[] = {
1799 : // signatures
1800 : SIGNATURES_SECTION_VOID_VOID, ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1801 : SECTION(Export,
1802 : ENTRY_COUNT(1), // exports
1803 : U32V_1(84), // invalid string length
1804 : 'e', // --
1805 : kExternalFunction, // --
1806 : FUNC_INDEX(0), // --
1807 : 0, 0, 0) // auxiliary data
1808 : };
1809 :
1810 5 : EXPECT_FAILURE(data);
1811 1 : }
1812 :
1813 15129 : TEST_F(WasmModuleVerifyTest, ExportTableTwo) {
1814 : static const byte data[] = {
1815 : // signatures
1816 : SIGNATURES_SECTION_VOID_VOID, ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1817 : SECTION(Export,
1818 : ENTRY_COUNT(2), // exports
1819 : ADD_COUNT('n', 'a', 'm', 'e'), // --
1820 : kExternalFunction, // --
1821 : FUNC_INDEX(0), // --
1822 : ADD_COUNT('n', 'o', 'm'), // --
1823 : kExternalFunction, // --
1824 : FUNC_INDEX(0)), // --
1825 : ONE_EMPTY_BODY};
1826 :
1827 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
1828 2 : EXPECT_OK(result);
1829 :
1830 3 : EXPECT_EQ(1u, result.value()->functions.size());
1831 4 : EXPECT_EQ(2u, result.value()->export_table.size());
1832 : }
1833 :
1834 15129 : TEST_F(WasmModuleVerifyTest, ExportTableThree) {
1835 : static const byte data[] = {
1836 : // signatures
1837 : SIGNATURES_SECTION_VOID_VOID, THREE_EMPTY_FUNCTIONS(SIG_INDEX(0)),
1838 : SECTION(Export,
1839 : ENTRY_COUNT(3), // exports
1840 : ADD_COUNT('a'), // --
1841 : kExternalFunction,
1842 : FUNC_INDEX(0), // --
1843 : ADD_COUNT('b'), // --
1844 : kExternalFunction,
1845 : FUNC_INDEX(1), // --
1846 : ADD_COUNT('c'), // --
1847 : kExternalFunction,
1848 : FUNC_INDEX(2)), // --
1849 : THREE_EMPTY_BODIES};
1850 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
1851 2 : EXPECT_OK(result);
1852 :
1853 3 : EXPECT_EQ(3u, result.value()->functions.size());
1854 4 : EXPECT_EQ(3u, result.value()->export_table.size());
1855 : }
1856 :
1857 15129 : TEST_F(WasmModuleVerifyTest, ExportTableThreeOne) {
1858 7 : for (int i = 0; i < 6; i++) {
1859 : const byte data[] = {
1860 : // signatures
1861 : SIGNATURES_SECTION_VOID_VOID, THREE_EMPTY_FUNCTIONS(SIG_INDEX(0)),
1862 : SECTION(Export,
1863 : ENTRY_COUNT(1), // exports
1864 : ADD_COUNT('e', 'x'), // --
1865 : kExternalFunction,
1866 : FUNC_INDEX(i)), // --
1867 6 : THREE_EMPTY_BODIES};
1868 :
1869 6 : if (i < 3) {
1870 12 : EXPECT_VERIFIES(data);
1871 : } else {
1872 15 : EXPECT_FAILURE(data);
1873 : }
1874 : }
1875 1 : }
1876 :
1877 15129 : TEST_F(WasmModuleVerifyTest, ExportTableOne_off_end) {
1878 : static const byte data[] = {
1879 : // signatures
1880 : SIGNATURES_SECTION_VOID_VOID, ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
1881 : SECTION(Export,
1882 : ENTRY_COUNT(1), // exports
1883 : NO_NAME, // --
1884 : kExternalFunction,
1885 : FUNC_INDEX(0), // --
1886 : 0, 0, 0) // auxiliary data
1887 : };
1888 :
1889 13 : EXPECT_OFF_END_FAILURE(data, arraysize(data) - 3);
1890 1 : }
1891 :
1892 15129 : TEST_F(WasmModuleVerifyTest, Regression_648070) {
1893 : static const byte data[] = {
1894 : SECTION(Type, ENTRY_COUNT(0)), // --
1895 : SECTION(Function, U32V_5(3500228624)) // function count = 3500228624
1896 : }; // --
1897 5 : EXPECT_FAILURE(data);
1898 1 : }
1899 :
1900 15129 : TEST_F(WasmModuleVerifyTest, Regression_738097) {
1901 : // The function body size caused an integer overflow in the module decoder.
1902 : static const byte data[] = {
1903 : SIGNATURES_SECTION(1, SIG_ENTRY_v_v), // --
1904 : FUNCTION_SIGNATURES_SECTION(1, 0), // --
1905 : SECTION(Code, // --
1906 : ENTRY_COUNT(1), // --
1907 : U32V_5(0xFFFFFFFF), // function size,
1908 : 0) // No real body
1909 : };
1910 5 : EXPECT_FAILURE(data);
1911 1 : }
1912 :
1913 15129 : TEST_F(WasmModuleVerifyTest, FunctionBodySizeLimit) {
1914 : const uint32_t delta = 3;
1915 7 : for (uint32_t body_size = kV8MaxWasmFunctionSize - delta;
1916 : body_size < kV8MaxWasmFunctionSize + delta; body_size++) {
1917 : byte data[] = {
1918 : SIGNATURES_SECTION(1, SIG_ENTRY_v_v), // --
1919 : FUNCTION_SIGNATURES_SECTION(1, 0), // --
1920 : kCodeSectionCode, // code section
1921 24 : U32V_5(1 + body_size + 5), // section size
1922 : 1, // # functions
1923 24 : U32V_5(body_size) // body size
1924 54 : };
1925 6 : size_t total = sizeof(data) + body_size;
1926 6 : byte* buffer = reinterpret_cast<byte*>(calloc(1, total));
1927 : memcpy(buffer, data, sizeof(data));
1928 12 : ModuleResult result = DecodeModule(buffer, buffer + total);
1929 6 : if (body_size <= kV8MaxWasmFunctionSize) {
1930 4 : EXPECT_TRUE(result.ok());
1931 : } else {
1932 4 : EXPECT_FALSE(result.ok());
1933 : }
1934 6 : free(buffer);
1935 6 : }
1936 1 : }
1937 :
1938 15129 : TEST_F(WasmModuleVerifyTest, FunctionBodies_empty) {
1939 : static const byte data[] = {
1940 : EMPTY_SIGNATURES_SECTION, // --
1941 : EMPTY_FUNCTION_SIGNATURES_SECTION, // --
1942 : EMPTY_FUNCTION_BODIES_SECTION // --
1943 : };
1944 4 : EXPECT_VERIFIES(data);
1945 1 : }
1946 :
1947 15129 : TEST_F(WasmModuleVerifyTest, FunctionBodies_one_empty) {
1948 : static const byte data[] = {
1949 : SIGNATURES_SECTION(1, SIG_ENTRY_v_v), // --
1950 : FUNCTION_SIGNATURES_SECTION(1, 0), // --
1951 : ONE_EMPTY_BODY // --
1952 : };
1953 4 : EXPECT_VERIFIES(data);
1954 1 : }
1955 :
1956 15129 : TEST_F(WasmModuleVerifyTest, FunctionBodies_one_nop) {
1957 : static const byte data[] = {
1958 : SIGNATURES_SECTION(1, SIG_ENTRY_v_v), // --
1959 : FUNCTION_SIGNATURES_SECTION(1, 0), // --
1960 : SECTION(Code, ENTRY_COUNT(1), NOP_BODY) // --
1961 : };
1962 4 : EXPECT_VERIFIES(data);
1963 1 : }
1964 :
1965 15129 : TEST_F(WasmModuleVerifyTest, FunctionBodies_count_mismatch1) {
1966 : static const byte data[] = {
1967 : SIGNATURES_SECTION(1, SIG_ENTRY_v_v), // --
1968 : FUNCTION_SIGNATURES_SECTION(2, 0, 0), // --
1969 : ONE_EMPTY_BODY // --
1970 : };
1971 5 : EXPECT_FAILURE(data);
1972 1 : }
1973 :
1974 15129 : TEST_F(WasmModuleVerifyTest, FunctionBodies_count_mismatch2) {
1975 : static const byte data[] = {
1976 : SIGNATURES_SECTION(1, SIG_ENTRY_v_v), // --
1977 : FUNCTION_SIGNATURES_SECTION(1, 0), // --
1978 : SECTION(Code, ENTRY_COUNT(2), NOP_BODY, NOP_BODY) // --
1979 : };
1980 5 : EXPECT_FAILURE(data);
1981 1 : }
1982 :
1983 15129 : TEST_F(WasmModuleVerifyTest, Names_empty) {
1984 : static const byte data[] = {
1985 : EMPTY_SIGNATURES_SECTION, EMPTY_FUNCTION_SIGNATURES_SECTION,
1986 : EMPTY_FUNCTION_BODIES_SECTION, EMPTY_NAMES_SECTION};
1987 4 : EXPECT_VERIFIES(data);
1988 1 : }
1989 :
1990 15129 : TEST_F(WasmModuleVerifyTest, Names_one_empty) {
1991 : // TODO(wasm): This test does not test anything (corrupt name section does not
1992 : // fail validation).
1993 : static const byte data[] = {
1994 : SIGNATURES_SECTION(1, SIG_ENTRY_v_v), // --
1995 : FUNCTION_SIGNATURES_SECTION(1, 0), // --
1996 : ONE_EMPTY_BODY, // --
1997 : SECTION_NAMES(ENTRY_COUNT(1), FOO_STRING, NO_LOCAL_NAMES) // --
1998 : };
1999 4 : EXPECT_VERIFIES(data);
2000 1 : }
2001 :
2002 15129 : TEST_F(WasmModuleVerifyTest, Names_two_empty) {
2003 : // TODO(wasm): This test does not test anything (corrupt name section does not
2004 : // fail validation).
2005 : static const byte data[] = {
2006 : SIGNATURES_SECTION(1, SIG_ENTRY_v_v), // --
2007 : FUNCTION_SIGNATURES_SECTION(2, 0, 0), // --
2008 : TWO_EMPTY_BODIES, // --
2009 : SECTION_NAMES(ENTRY_COUNT(2), // --
2010 : FOO_STRING, NO_LOCAL_NAMES, // --
2011 : FOO_STRING, NO_LOCAL_NAMES), // --
2012 : };
2013 4 : EXPECT_VERIFIES(data);
2014 1 : }
2015 :
2016 15129 : TEST_F(WasmModuleVerifyTest, Regression684855) {
2017 : static const byte data[] = {
2018 : SECTION_NAMES(0xFB, // functions count
2019 : 0x27, // |
2020 : 0x00, // function name length
2021 : 0xFF, // local names count
2022 : 0xFF, // |
2023 : 0xFF, // |
2024 : 0xFF, // |
2025 : 0xFF, // |
2026 : 0xFF, // error: "varint too large"
2027 : 0xFF, // |
2028 : 0x00, // --
2029 : 0x00) // --
2030 : };
2031 4 : EXPECT_VERIFIES(data);
2032 1 : }
2033 :
2034 15129 : TEST_F(WasmModuleVerifyTest, FunctionSectionWithoutCodeSection) {
2035 : static const byte data[] = {
2036 : SIGNATURES_SECTION(1, SIG_ENTRY_v_v), // Type section.
2037 : FUNCTION_SIGNATURES_SECTION(1, 0), // Function section.
2038 : };
2039 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2040 7 : EXPECT_NOT_OK(result, "function count is 1, but code section is absent");
2041 1 : }
2042 :
2043 15129 : TEST_F(WasmModuleVerifyTest, CodeSectionWithoutFunctionSection) {
2044 : static const byte data[] = {ONE_EMPTY_BODY};
2045 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2046 7 : EXPECT_NOT_OK(result, "function body count 1 mismatch (0 expected)");
2047 1 : }
2048 :
2049 15129 : TEST_F(WasmModuleVerifyTest, EmptyFunctionSectionWithoutCodeSection) {
2050 : static const byte data[] = {SECTION(Function, ENTRY_COUNT(0))};
2051 4 : EXPECT_VERIFIES(data);
2052 1 : }
2053 :
2054 15129 : TEST_F(WasmModuleVerifyTest, EmptyCodeSectionWithoutFunctionSection) {
2055 : static const byte data[] = {SECTION(Code, ENTRY_COUNT(0))};
2056 4 : EXPECT_VERIFIES(data);
2057 1 : }
2058 :
2059 6 : class WasmInitExprDecodeTest : public TestWithZone {
2060 : public:
2061 6 : WasmInitExprDecodeTest() = default;
2062 :
2063 : WasmFeatures enabled_features_;
2064 :
2065 : WasmInitExpr DecodeInitExpr(const byte* start, const byte* end) {
2066 22 : return DecodeWasmInitExprForTesting(enabled_features_, start, end);
2067 : }
2068 : };
2069 :
2070 : #define EXPECT_INIT_EXPR(Type, type, value, ...) \
2071 : { \
2072 : static const byte data[] = {__VA_ARGS__, kExprEnd}; \
2073 : WasmInitExpr expr = DecodeInitExpr(data, data + sizeof(data)); \
2074 : EXPECT_EQ(WasmInitExpr::k##Type##Const, expr.kind); \
2075 : EXPECT_EQ(value, expr.val.type##_const); \
2076 : }
2077 :
2078 : #define EXPECT_INIT_EXPR_FAIL(...) \
2079 : { \
2080 : static const byte data[] = {__VA_ARGS__, kExprEnd}; \
2081 : WasmInitExpr expr = DecodeInitExpr(data, data + sizeof(data)); \
2082 : EXPECT_EQ(WasmInitExpr::kNone, expr.kind); \
2083 : }
2084 :
2085 15129 : TEST_F(WasmInitExprDecodeTest, InitExpr_i32) {
2086 5 : EXPECT_INIT_EXPR(I32, i32, 33, WASM_I32V_1(33));
2087 5 : EXPECT_INIT_EXPR(I32, i32, -21, WASM_I32V_1(-21));
2088 5 : EXPECT_INIT_EXPR(I32, i32, 437, WASM_I32V_2(437));
2089 5 : EXPECT_INIT_EXPR(I32, i32, 77777, WASM_I32V_3(77777));
2090 1 : }
2091 :
2092 15129 : TEST_F(WasmInitExprDecodeTest, InitExpr_f32) {
2093 5 : EXPECT_INIT_EXPR(F32, f32, static_cast<float>(13.1), WASM_F32(13.1));
2094 5 : EXPECT_INIT_EXPR(F32, f32, static_cast<float>(-21.1), WASM_F32(-21.1));
2095 5 : EXPECT_INIT_EXPR(F32, f32, static_cast<float>(437.2), WASM_F32(437.2));
2096 5 : EXPECT_INIT_EXPR(F32, f32, static_cast<float>(77777.3), WASM_F32(77777.3));
2097 1 : }
2098 :
2099 15129 : TEST_F(WasmInitExprDecodeTest, InitExpr_i64) {
2100 5 : EXPECT_INIT_EXPR(I64, i64, 33, WASM_I64V_1(33));
2101 5 : EXPECT_INIT_EXPR(I64, i64, -21, WASM_I64V_2(-21));
2102 5 : EXPECT_INIT_EXPR(I64, i64, 437, WASM_I64V_5(437));
2103 5 : EXPECT_INIT_EXPR(I64, i64, 77777, WASM_I64V_7(77777));
2104 1 : }
2105 :
2106 15129 : TEST_F(WasmInitExprDecodeTest, InitExpr_f64) {
2107 5 : EXPECT_INIT_EXPR(F64, f64, 83.22, WASM_F64(83.22));
2108 5 : EXPECT_INIT_EXPR(F64, f64, -771.3, WASM_F64(-771.3));
2109 5 : EXPECT_INIT_EXPR(F64, f64, 43703.0, WASM_F64(43703.0));
2110 5 : EXPECT_INIT_EXPR(F64, f64, 77999.1, WASM_F64(77999.1));
2111 1 : }
2112 :
2113 15129 : TEST_F(WasmInitExprDecodeTest, InitExpr_AnyRef) {
2114 1 : WASM_FEATURE_SCOPE(anyref);
2115 : static const byte data[] = {kExprRefNull, kExprEnd};
2116 1 : WasmInitExpr expr = DecodeInitExpr(data, data + sizeof(data));
2117 2 : EXPECT_EQ(WasmInitExpr::kAnyRefConst, expr.kind);
2118 1 : }
2119 :
2120 15129 : TEST_F(WasmInitExprDecodeTest, InitExpr_illegal) {
2121 3 : EXPECT_INIT_EXPR_FAIL(WASM_I32V_1(0), WASM_I32V_1(0));
2122 2 : EXPECT_INIT_EXPR_FAIL(WASM_GET_LOCAL(0));
2123 3 : EXPECT_INIT_EXPR_FAIL(WASM_SET_LOCAL(0, WASM_I32V_1(0)));
2124 3 : EXPECT_INIT_EXPR_FAIL(WASM_I32_ADD(WASM_I32V_1(0), WASM_I32V_1(0)));
2125 2 : EXPECT_INIT_EXPR_FAIL(WASM_IF_ELSE(WASM_ZERO, WASM_ZERO, WASM_ZERO));
2126 1 : }
2127 :
2128 15129 : TEST_F(WasmModuleVerifyTest, Multiple_Named_Sections) {
2129 : static const byte data[] = {
2130 : SECTION(Unknown, ADD_COUNT('X'), 17, 18), // --
2131 : SECTION(Unknown, ADD_COUNT('f', 'o', 'o'), 5, 6, 7, 8, 9), // --
2132 : SECTION(Unknown, ADD_COUNT('o', 't', 'h', 'e', 'r'), 7, 8), // --
2133 : };
2134 4 : EXPECT_VERIFIES(data);
2135 1 : }
2136 :
2137 15129 : TEST_F(WasmModuleVerifyTest, Section_Name_No_UTF8) {
2138 : static const byte data[] = {SECTION(Unknown, 1, 0xFF, 17, 18)};
2139 5 : EXPECT_FAILURE(data);
2140 1 : }
2141 :
2142 4 : class WasmModuleCustomSectionTest : public TestWithIsolateAndZone {
2143 : public:
2144 2 : void CheckSections(const byte* module_start, const byte* module_end,
2145 : const CustomSectionOffset* expected, size_t num_expected) {
2146 : std::vector<CustomSectionOffset> custom_sections =
2147 2 : DecodeCustomSections(module_start, module_end);
2148 :
2149 4 : CHECK_EQ(num_expected, custom_sections.size());
2150 :
2151 5 : for (size_t i = 0; i < num_expected; i++) {
2152 20 : EXPECT_EQ(expected[i].section.offset(),
2153 0 : custom_sections[i].section.offset());
2154 20 : EXPECT_EQ(expected[i].section.length(),
2155 0 : custom_sections[i].section.length());
2156 20 : EXPECT_EQ(expected[i].name.offset(), custom_sections[i].name.offset());
2157 20 : EXPECT_EQ(expected[i].name.length(), custom_sections[i].name.length());
2158 20 : EXPECT_EQ(expected[i].payload.offset(),
2159 0 : custom_sections[i].payload.offset());
2160 20 : EXPECT_EQ(expected[i].payload.length(),
2161 0 : custom_sections[i].payload.length());
2162 : }
2163 2 : }
2164 : };
2165 :
2166 15129 : TEST_F(WasmModuleCustomSectionTest, ThreeUnknownSections) {
2167 : static constexpr byte data[] = {
2168 : U32_LE(kWasmMagic), // --
2169 : U32_LE(kWasmVersion), // --
2170 : SECTION(Unknown, 1, 'X', 17, 18), // --
2171 : SECTION(Unknown, 3, 'f', 'o', 'o', 5, 6, 7, 8, 9), // --
2172 : SECTION(Unknown, 5, 'o', 't', 'h', 'e', 'r', 7, 8), // --
2173 : };
2174 :
2175 : static const CustomSectionOffset expected[] = {
2176 : // section, name, payload
2177 : {{10, 4}, {11, 1}, {12, 2}}, // --
2178 : {{16, 9}, {17, 3}, {20, 5}}, // --
2179 : {{27, 8}, {28, 5}, {33, 2}}, // --
2180 2 : };
2181 :
2182 1 : CheckSections(data, data + sizeof(data), expected, arraysize(expected));
2183 1 : }
2184 :
2185 15129 : TEST_F(WasmModuleCustomSectionTest, TwoKnownTwoUnknownSections) {
2186 : static const byte data[] = {
2187 : U32_LE(kWasmMagic), // --
2188 : U32_LE(kWasmVersion), // --
2189 : SIGNATURES_SECTION(2, SIG_ENTRY_v_v, SIG_ENTRY_v_v), // --
2190 : SECTION(Unknown, ADD_COUNT('X'), 17, 18), // --
2191 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)), // --
2192 : SECTION(Unknown, ADD_COUNT('o', 't', 'h', 'e', 'r'), 7, 8), // --
2193 : };
2194 :
2195 : static const CustomSectionOffset expected[] = {
2196 : // section, name, payload
2197 : {{19, 4}, {20, 1}, {21, 2}}, // --
2198 : {{29, 8}, {30, 5}, {35, 2}}, // --
2199 2 : };
2200 :
2201 1 : CheckSections(data, data + sizeof(data), expected, arraysize(expected));
2202 1 : }
2203 :
2204 15129 : TEST_F(WasmModuleVerifyTest, SourceMappingURLSection) {
2205 : static const byte data[] = {
2206 : SECTION_SRC_MAP('s', 'r', 'c', '/', 'x', 'y', 'z', '.', 'c')};
2207 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2208 1 : EXPECT_TRUE(result.ok());
2209 3 : EXPECT_EQ("src/xyz.c", result.value()->source_map_url);
2210 1 : }
2211 :
2212 15129 : TEST_F(WasmModuleVerifyTest, BadSourceMappingURLSection) {
2213 : static const byte data[] = {
2214 : SECTION_SRC_MAP('s', 'r', 'c', '/', 'x', 0xff, 'z', '.', 'c')};
2215 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2216 1 : EXPECT_TRUE(result.ok());
2217 4 : EXPECT_EQ(0u, result.value()->source_map_url.size());
2218 1 : }
2219 :
2220 15129 : TEST_F(WasmModuleVerifyTest, MultipleSourceMappingURLSections) {
2221 : static const byte data[] = {SECTION_SRC_MAP('a', 'b', 'c'),
2222 : SECTION_SRC_MAP('p', 'q', 'r')};
2223 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2224 1 : EXPECT_TRUE(result.ok());
2225 3 : EXPECT_EQ("abc", result.value()->source_map_url);
2226 1 : }
2227 :
2228 15129 : TEST_F(WasmModuleVerifyTest, MultipleNameSections) {
2229 : static const byte data[] = {
2230 : SECTION_NAMES(0, ADD_COUNT(ADD_COUNT('a', 'b', 'c'))),
2231 : SECTION_NAMES(0, ADD_COUNT(ADD_COUNT('p', 'q', 'r', 's')))};
2232 2 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2233 1 : EXPECT_TRUE(result.ok());
2234 3 : EXPECT_EQ(3u, result.value()->name.length());
2235 1 : }
2236 :
2237 15129 : TEST_F(WasmModuleVerifyTest, PassiveDataSegment) {
2238 : static const byte data[] = {
2239 : // memory declaration ----------------------------------------------------
2240 : SECTION(Memory, ENTRY_COUNT(1), 0, 1),
2241 : // data segments --------------------------------------------------------
2242 : SECTION(Data, ENTRY_COUNT(1), PASSIVE, ADD_COUNT('h', 'i')),
2243 : };
2244 5 : EXPECT_FAILURE(data);
2245 1 : WASM_FEATURE_SCOPE(bulk_memory);
2246 4 : EXPECT_VERIFIES(data);
2247 21 : EXPECT_OFF_END_FAILURE(data, arraysize(data) - 5);
2248 1 : }
2249 :
2250 15129 : TEST_F(WasmModuleVerifyTest, PassiveElementSegment) {
2251 : static const byte data[] = {
2252 : // sig#0 -----------------------------------------------------------------
2253 : SIGNATURES_SECTION_VOID_VOID,
2254 : // funcs -----------------------------------------------------------------
2255 : ONE_EMPTY_FUNCTION(SIG_INDEX(0)),
2256 : // table declaration -----------------------------------------------------
2257 : SECTION(Table, ENTRY_COUNT(1), kLocalAnyFunc, 0, 1),
2258 : // element segments -----------------------------------------------------
2259 : SECTION(Element, ENTRY_COUNT(1), PASSIVE,
2260 : ADD_COUNT(FUNC_INDEX(0), FUNC_INDEX(0))),
2261 : // code ------------------------------------------------------------------
2262 : ONE_EMPTY_BODY};
2263 5 : EXPECT_FAILURE(data);
2264 1 : WASM_FEATURE_SCOPE(bulk_memory);
2265 4 : EXPECT_VERIFIES(data);
2266 21 : EXPECT_OFF_END_FAILURE(data, arraysize(data) - 5);
2267 1 : }
2268 :
2269 15129 : TEST_F(WasmModuleVerifyTest, DataCountSectionCorrectPlacement) {
2270 : static const byte data[] = {SECTION(Element, ENTRY_COUNT(0)),
2271 : SECTION(DataCount, ENTRY_COUNT(0)),
2272 : SECTION(Code, ENTRY_COUNT(0))};
2273 5 : EXPECT_FAILURE(data);
2274 1 : WASM_FEATURE_SCOPE(bulk_memory);
2275 4 : EXPECT_VERIFIES(data);
2276 1 : }
2277 :
2278 15129 : TEST_F(WasmModuleVerifyTest, DataCountSectionAfterCode) {
2279 : static const byte data[] = {SECTION(Code, ENTRY_COUNT(0)),
2280 : SECTION(DataCount, ENTRY_COUNT(0))};
2281 1 : WASM_FEATURE_SCOPE(bulk_memory);
2282 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2283 6 : EXPECT_NOT_OK(result,
2284 : "The DataCount section must appear before the Code section");
2285 1 : }
2286 :
2287 15129 : TEST_F(WasmModuleVerifyTest, DataCountSectionBeforeElement) {
2288 : static const byte data[] = {SECTION(DataCount, ENTRY_COUNT(0)),
2289 : SECTION(Element, ENTRY_COUNT(0))};
2290 1 : WASM_FEATURE_SCOPE(bulk_memory);
2291 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2292 6 : EXPECT_NOT_OK(result, "unexpected section: Element");
2293 1 : }
2294 :
2295 15129 : TEST_F(WasmModuleVerifyTest, DataCountSectionAfterStartBeforeElement) {
2296 : STATIC_ASSERT(kStartSectionCode + 1 == kElementSectionCode);
2297 : static const byte data[] = {
2298 : // We need the start section for this test, but the start section must
2299 : // reference a valid function, which requires the type and function
2300 : // sections too.
2301 : SIGNATURES_SECTION(1, SIG_ENTRY_v_v), // Type section.
2302 : FUNCTION_SIGNATURES_SECTION(1, 0), // Function section.
2303 :
2304 : SECTION(Start, U32V_1(0)), // Start section.
2305 : SECTION(DataCount, ENTRY_COUNT(0)), // DataCount section.
2306 : SECTION(Element, ENTRY_COUNT(0)) // Element section.
2307 : };
2308 1 : WASM_FEATURE_SCOPE(bulk_memory);
2309 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2310 6 : EXPECT_NOT_OK(result, "unexpected section: Element");
2311 1 : }
2312 :
2313 15129 : TEST_F(WasmModuleVerifyTest, MultipleDataCountSections) {
2314 : static const byte data[] = {SECTION(DataCount, ENTRY_COUNT(0)),
2315 : SECTION(DataCount, ENTRY_COUNT(0))};
2316 1 : WASM_FEATURE_SCOPE(bulk_memory);
2317 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2318 6 : EXPECT_NOT_OK(result, "Multiple DataCount sections not allowed");
2319 1 : }
2320 :
2321 15129 : TEST_F(WasmModuleVerifyTest, DataCountSegmentCountMatch) {
2322 : static const byte data[] = {
2323 : SECTION(Memory, ENTRY_COUNT(1), 0, 1), // Memory section.
2324 : SECTION(DataCount, ENTRY_COUNT(1)), // DataCount section.
2325 : SECTION(Data, ENTRY_COUNT(1), LINEAR_MEMORY_INDEX_0, // Data section.
2326 1 : WASM_INIT_EXPR_I32V_1(12), ADD_COUNT('h', 'i'))};
2327 :
2328 5 : EXPECT_FAILURE(data);
2329 1 : WASM_FEATURE_SCOPE(bulk_memory);
2330 4 : EXPECT_VERIFIES(data);
2331 1 : }
2332 :
2333 15129 : TEST_F(WasmModuleVerifyTest, DataCountSegmentCount_greater) {
2334 : static const byte data[] = {
2335 : SECTION(Memory, ENTRY_COUNT(1), 0, 1), // Memory section.
2336 : SECTION(DataCount, ENTRY_COUNT(3)), // DataCount section.
2337 : SECTION(Data, ENTRY_COUNT(0))}; // Data section.
2338 1 : WASM_FEATURE_SCOPE(bulk_memory);
2339 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2340 6 : EXPECT_NOT_OK(result, "data segments count 0 mismatch (3 expected)");
2341 1 : }
2342 :
2343 15129 : TEST_F(WasmModuleVerifyTest, DataCountSegmentCount_less) {
2344 : static const byte data[] = {
2345 : SECTION(Memory, ENTRY_COUNT(1), 0, 1), // Memory section.
2346 : SECTION(DataCount, ENTRY_COUNT(0)), // DataCount section.
2347 : SECTION(Data, ENTRY_COUNT(1), LINEAR_MEMORY_INDEX_0, // Data section.
2348 1 : WASM_INIT_EXPR_I32V_1(12), ADD_COUNT('a', 'b', 'c'))};
2349 1 : WASM_FEATURE_SCOPE(bulk_memory);
2350 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2351 6 : EXPECT_NOT_OK(result, "data segments count 1 mismatch (0 expected)");
2352 1 : }
2353 :
2354 15129 : TEST_F(WasmModuleVerifyTest, DataCountSegmentCount_omitted) {
2355 : static const byte data[] = {SECTION(Memory, ENTRY_COUNT(1), 0, 1),
2356 : SECTION(DataCount, ENTRY_COUNT(1))};
2357 1 : WASM_FEATURE_SCOPE(bulk_memory);
2358 3 : ModuleResult result = DecodeModule(data, data + sizeof(data));
2359 6 : EXPECT_NOT_OK(result, "data segments count 0 mismatch (1 expected)");
2360 1 : }
2361 :
2362 : #undef WASM_FEATURE_SCOPE
2363 : #undef WASM_FEATURE_SCOPE_VAL
2364 : #undef EXPECT_INIT_EXPR
2365 : #undef EXPECT_INIT_EXPR_FAIL
2366 : #undef WASM_INIT_EXPR_I32V_1
2367 : #undef WASM_INIT_EXPR_I32V_2
2368 : #undef WASM_INIT_EXPR_I32V_3
2369 : #undef WASM_INIT_EXPR_I32V_4
2370 : #undef WASM_INIT_EXPR_I32V_5
2371 : #undef WASM_INIT_EXPR_F32
2372 : #undef WASM_INIT_EXPR_I64
2373 : #undef WASM_INIT_EXPR_F64
2374 : #undef WASM_INIT_EXPR_ANYREF
2375 : #undef WASM_INIT_EXPR_GLOBAL
2376 : #undef EMPTY_BODY
2377 : #undef NOP_BODY
2378 : #undef SIG_ENTRY_i_i
2379 : #undef UNKNOWN_SECTION
2380 : #undef COUNT_ARGS
2381 : #undef CHECK_LEB1
2382 : #undef ADD_COUNT
2383 : #undef SECTION
2384 : #undef SIGNATURES_SECTION
2385 : #undef FUNCTION_SIGNATURES_SECTION
2386 : #undef FOO_STRING
2387 : #undef NO_LOCAL_NAMES
2388 : #undef EMPTY_SIGNATURES_SECTION
2389 : #undef EMPTY_FUNCTION_SIGNATURES_SECTION
2390 : #undef EMPTY_FUNCTION_BODIES_SECTION
2391 : #undef SECTION_NAMES
2392 : #undef EMPTY_NAMES_SECTION
2393 : #undef SECTION_SRC_MAP
2394 : #undef FAIL_IF_NO_EXPERIMENTAL_EH
2395 : #undef X1
2396 : #undef X2
2397 : #undef X3
2398 : #undef X4
2399 : #undef ONE_EMPTY_FUNCTION
2400 : #undef TWO_EMPTY_FUNCTIONS
2401 : #undef THREE_EMPTY_FUNCTIONS
2402 : #undef FOUR_EMPTY_FUNCTIONS
2403 : #undef ONE_EMPTY_BODY
2404 : #undef TWO_EMPTY_BODIES
2405 : #undef THREE_EMPTY_BODIES
2406 : #undef FOUR_EMPTY_BODIES
2407 : #undef SIGNATURES_SECTION_VOID_VOID
2408 : #undef LINEAR_MEMORY_INDEX_0
2409 : #undef EXCEPTION_ENTRY
2410 : #undef EXPECT_VERIFIES
2411 : #undef EXPECT_FAILURE_LEN
2412 : #undef EXPECT_FAILURE
2413 : #undef EXPECT_OFF_END_FAILURE
2414 : #undef EXPECT_OK
2415 : #undef EXPECT_NOT_OK
2416 :
2417 : } // namespace module_decoder_unittest
2418 : } // namespace wasm
2419 : } // namespace internal
2420 9075 : } // namespace v8
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